diff --git a/Tests/Common.ps1 b/Tests/Common.ps1
index 054eb7e8..41253602 100644
--- a/Tests/Common.ps1
+++ b/Tests/Common.ps1
@@ -100,6 +100,10 @@ function Initialize-CommonTestSetup
     Set-GitHubConfiguration -LogRequestBody # Make it easier to debug UT failures
     Set-GitHubConfiguration -MultiRequestProgressThreshold 0 # Status corrupts the raw CI logs for Linux and Mac, and makes runs take slightly longer.
     Set-GitHubConfiguration -DisableUpdateCheck # The update check is unnecessary during tests.
+
+    # The number of seconds to sleep after performing some operations to ensure that successive
+    # API calls properly reflect previously updated state.
+    $script:defaultSleepSecondsForReliability = 3
 }
 
 Initialize-CommonTestSetup
diff --git a/Tests/GitHubAssignees.tests.ps1 b/Tests/GitHubAssignees.tests.ps1
index 64a694b5..0501f183 100644
--- a/Tests/GitHubAssignees.tests.ps1
+++ b/Tests/GitHubAssignees.tests.ps1
@@ -107,12 +107,22 @@ try
 
         Context 'Adding and removing an assignee via parameters' {
             $issue = $repo | New-GitHubIssue -Title "Test issue"
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             It 'Should have no assignees when created' {
                 $issue.assignee.login | Should -BeNullOrEmpty
                 $issue.assignees | Should -BeNullOrEmpty
             }
 
             $updatedIssue = Add-GitHubAssignee -OwnerName $script:ownerName -RepositoryName $repo.name -Issue $issue.number -Assignee $owner.login
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             It 'Should have returned the same issue' {
                 $updatedIssue.number | Should -Be $issue.number
             }
@@ -144,12 +154,22 @@ try
 
         Context 'Adding an assignee with the repo on the pipeline' {
             $issue = $repo | New-GitHubIssue -Title "Test issue"
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             It 'Should have no assignees when created' {
                 $issue.assignee.login | Should -BeNullOrEmpty
                 $issue.assignees | Should -BeNullOrEmpty
             }
 
             $updatedIssue = $repo | Add-GitHubAssignee -Issue $issue.number -Assignee $owner.login
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             It 'Should have returned the same issue' {
                 $updatedIssue.number | Should -Be $issue.number
             }
@@ -181,12 +201,22 @@ try
 
         Context 'Adding an assignee with the issue on the pipeline' {
             $issue = $repo | New-GitHubIssue -Title "Test issue"
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             It 'Should have no assignees when created' {
                 $issue.assignee.login | Should -BeNullOrEmpty
                 $issue.assignees | Should -BeNullOrEmpty
             }
 
             $updatedIssue = $issue | Add-GitHubAssignee -Assignee $owner.login
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             It 'Should have returned the same issue' {
                 $updatedIssue.number | Should -Be $issue.number
             }
@@ -218,12 +248,22 @@ try
 
         Context 'Adding an assignee with the assignee user object on the pipeline' {
             $issue = $repo | New-GitHubIssue -Title "Test issue"
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             It 'Should have no assignees when created' {
                 $issue.assignee.login | Should -BeNullOrEmpty
                 $issue.assignees | Should -BeNullOrEmpty
             }
 
             $updatedIssue = $owner | Add-GitHubAssignee -OwnerName $script:ownerName -RepositoryName $repo.name -Issue $issue.number
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             It 'Should have returned the same issue' {
                 $updatedIssue.number | Should -Be $issue.number
             }
@@ -239,6 +279,7 @@ try
             }
 
             $updatedIssue = $owner | Remove-GitHubAssignee -OwnerName $script:ownerName -RepositoryName $repo.name -Issue $issue.number -Force
+
             It 'Should have returned the same issue' {
                 $updatedIssue.number | Should -Be $issue.number
             }
diff --git a/Tests/GitHubContents.tests.ps1 b/Tests/GitHubContents.tests.ps1
index c1b9661e..a52ed473 100644
--- a/Tests/GitHubContents.tests.ps1
+++ b/Tests/GitHubContents.tests.ps1
@@ -37,6 +37,10 @@ try
         BeforeAll {
             # AutoInit will create a readme with the GUID of the repo name
             $repo = New-GitHubRepository -RepositoryName ($repoGuid) -AutoInit
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         AfterAll {
@@ -260,6 +264,10 @@ try
             $repoName = [Guid]::NewGuid().Guid
 
             $repo = New-GitHubRepository -RepositoryName $repoName -AutoInit
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         Context 'When setting new file content' {
diff --git a/Tests/GitHubIssues.tests.ps1 b/Tests/GitHubIssues.tests.ps1
index ed5c4d88..1cff5d0c 100644
--- a/Tests/GitHubIssues.tests.ps1
+++ b/Tests/GitHubIssues.tests.ps1
@@ -161,7 +161,9 @@ try
             for ($i = 0; $i -lt 4; $i++)
             {
                 $newIssues += New-GitHubIssue -OwnerName $script:ownerName -RepositoryName $repo.name -Title ([Guid]::NewGuid().Guid)
-                Start-Sleep -Seconds 1 # Needed to ensure that there is a unique creation timestamp between issues
+
+                 # Needed to ensure that there is a unique creation timestamp between issues
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             $newIssues[0] = Set-GitHubIssue -OwnerName $script:ownerName -RepositoryName $repo.name -Issue $newIssues[0].number -State Closed
@@ -547,6 +549,11 @@ try
             }
 
             Lock-GitHubIssue -OwnerName $script:OwnerName -RepositoryName $repo.name -Issue $issue.number
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $timeline = @(Get-GitHubIssueTimeline -OwnerName $script:OwnerName -RepositoryName $repo.name -Issue $issue.number)
             It 'Should have an event now' {
                 $timeline.Count | Should -Be 1
diff --git a/Tests/GitHubLabels.tests.ps1 b/Tests/GitHubLabels.tests.ps1
index 5c3a1e30..8c635f0f 100644
--- a/Tests/GitHubLabels.tests.ps1
+++ b/Tests/GitHubLabels.tests.ps1
@@ -81,6 +81,10 @@ try
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
 
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             Initialize-GitHubLabel -OwnerName $script:ownerName -RepositoryName $repositoryName -Label $defaultLabels
         }
 
@@ -205,6 +209,10 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         AfterAll {
@@ -319,6 +327,10 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         AfterAll {
@@ -327,6 +339,11 @@ try
 
         Context 'Removing a label with parameters' {
             $label = $repo | New-GitHubLabel -Label 'test' -Color 'CCCCCC'
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             Remove-GitHubLabel -OwnerName $script:ownerName -RepositoryName $repositoryName -Label $label.name -Force
 
             It 'Should be gone after being removed by parameter' {
@@ -336,6 +353,11 @@ try
 
         Context 'Removing a label with the repo on the pipeline' {
             $label = $repo | New-GitHubLabel -Label 'test' -Color 'CCCCCC'
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $repo | Remove-GitHubLabel -Label $label.name -Confirm:$false
 
             It 'Should be gone after being removed by parameter' {
@@ -345,6 +367,11 @@ try
 
         Context 'Removing a label with the name on the pipeline' {
             $label = $repo | New-GitHubLabel -Label 'test' -Color 'CCCCCC'
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $label.name | Remove-GitHubLabel -OwnerName $script:ownerName -RepositoryName $repositoryName -Force
 
             It 'Should be gone after being removed by parameter' {
@@ -354,6 +381,11 @@ try
 
         Context 'Removing a label with the label object on the pipeline' {
             $label = $repo | New-GitHubLabel -Label 'test' -Color 'CCCCCC'
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $label | Remove-GitHubLabel -Force
 
             It 'Should be gone after being removed by parameter' {
@@ -366,6 +398,10 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         AfterAll {
@@ -543,6 +579,10 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         AfterAll {
@@ -617,6 +657,11 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $repo | Initialize-GitHubLabel -Label $defaultLabels
         }
 
@@ -845,6 +890,11 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $repo | Initialize-GitHubLabel -Label $defaultLabels
         }
 
@@ -911,6 +961,11 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $repo | Initialize-GitHubLabel -Label $defaultLabels
         }
 
@@ -1078,6 +1133,11 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $repo | Initialize-GitHubLabel -Label $defaultLabels
         }
 
@@ -1227,6 +1287,11 @@ try
         BeforeAll {
             $repositoryName = [Guid]::NewGuid().Guid
             $repo = New-GitHubRepository -RepositoryName $repositoryName
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $repo | Initialize-GitHubLabel -Label $defaultLabels
 
             $milestone = $repo | New-GitHubMilestone -Title 'test milestone'
diff --git a/Tests/GitHubProjects.tests.ps1 b/Tests/GitHubProjects.tests.ps1
index ccde85d6..3417c1d4 100644
--- a/Tests/GitHubProjects.tests.ps1
+++ b/Tests/GitHubProjects.tests.ps1
@@ -611,6 +611,10 @@ try
             $project = New-GitHubProject -OwnerName $script:ownerName -RepositoryName $repo.name -ProjectName $defaultRepoProject -Description $defaultRepoProjectDesc
             $null = Remove-GitHubProject -Project $project.id -Confirm:$false
             It 'Project should be removed' {
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 {Get-GitHubProject -Project $project.id} | Should -Throw
             }
         }
@@ -619,6 +623,10 @@ try
             $project = $repo | New-GitHubProject -ProjectName $defaultRepoProject -Description $defaultRepoProjectDesc
             $project | Remove-GitHubProject -Force
             It 'Project should be removed' {
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 {$project | Get-GitHubProject} | Should -Throw
             }
         }
diff --git a/Tests/GitHubRepositories.tests.ps1 b/Tests/GitHubRepositories.tests.ps1
index 6fbcd27a..5ea84b12 100644
--- a/Tests/GitHubRepositories.tests.ps1
+++ b/Tests/GitHubRepositories.tests.ps1
@@ -125,6 +125,10 @@ try
                         IsTemplate = $true
                     }
                     $repo = New-GitHubRepository @newGitHubRepositoryParms
+
+                    # The CI build has been unreliable with this test.
+                    # Adding a short sleep to ensure successive queries reflect updated state.
+                    Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
                 }
 
                 It 'Should return an object of the correct type' {
@@ -306,6 +310,10 @@ try
             }
 
             $templateRepo = New-GitHubRepository @newGitHubRepositoryParms
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         Context 'When creating a public repository from a template' {
@@ -321,7 +329,10 @@ try
                 }
 
                 $repo = New-GitHubRepositoryFromTemplate @newGitHubRepositoryFromTemplateParms
-                Start-Sleep -Seconds 1 # To work around a delay that GitHub may have with generating the repo
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             It 'Should have the expected type and addititional properties' {
@@ -362,7 +373,10 @@ try
                 }
 
                 $repo = $templateRepo | New-GitHubRepositoryFromTemplate @newGitHubRepositoryFromTemplateParms
-                Start-Sleep -Seconds 1 # To work around a delay that GitHub may have with generating the repo
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             It 'Should have the expected type and addititional properties' {
@@ -405,6 +419,10 @@ try
             BeforeAll {
                 $publicRepo = New-GitHubRepository -RepositoryName ([Guid]::NewGuid().Guid)
                 $privateRepo = New-GitHubRepository -RepositoryName ([Guid]::NewGuid().Guid) -Private
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             Context 'When specify the visibility parameter' {
@@ -485,7 +503,8 @@ try
                 }
 
                 It "Should return the correct membership order" {
-                    for ($i = 1; $i -le $sortedRepos.count; $i++) {
+                    for ($i = 1; $i -le $sortedRepos.count; $i++)
+                    {
                         $sortedRepos[$i].full_name | Should -Be $sortedRepoFullNames[$i]
                         $sortedDescendingRepos[$i].full_name | Should -Be $sortedDescendingRepoFullNames[$i]
                     }
@@ -527,7 +546,8 @@ try
             }
 
             It 'Should return the correct properties' {
-                foreach ($repo in $repos) {
+                foreach ($repo in $repos)
+                {
                     $repo.owner.login | Should -Be $ownerName
                 }
             }
@@ -536,6 +556,10 @@ try
         Context 'When getting a repository for a specified organization' {
             BeforeAll {
                 $repo = New-GitHubRepository -OrganizationName $script:organizationName -RepositoryName ([Guid]::NewGuid().Guid)
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             It "Should have results for the organization" {
@@ -553,6 +577,10 @@ try
                 $repo1 = New-GitHubRepository -RepositoryName ([Guid]::NewGuid().Guid)
                 $repo2 = New-GitHubRepository -RepositoryName ([Guid]::NewGuid().Guid)
 
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 $repos = Get-GitHubRepository -GetAllPublicRepositories -Since $repo1.id
             }
 
@@ -584,6 +612,10 @@ try
                 }
 
                 $repo = New-GitHubRepository @newGitHubRepositoryParms
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             Context 'When specifiying the Uri parameter' {
@@ -659,11 +691,21 @@ try
 
             It 'Should get no content using -Confirm:$false' {
                 Remove-GitHubRepository -OwnerName $repo.owner.login -RepositoryName $repo.name -Confirm:$false
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 { Get-GitHubRepository -OwnerName $repo.owner.login -RepositoryName $repo.name } | Should -Throw
             }
 
             It 'Should get no content using -Force' {
                 Remove-GitHubRepository -OwnerName $repo.owner.login -RepositoryName $repo.name -Force
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 { Get-GitHubRepository -OwnerName $repo.owner.login -RepositoryName $repo.name } | Should -Throw
             }
         }
@@ -676,31 +718,55 @@ try
                 $repo = New-GitHubRepository -RepositoryName ([Guid]::NewGuid().Guid) -AutoInit
                 $suffixToAddToRepo = "_renamed"
                 $newRepoName = "$($repo.name)$suffixToAddToRepo"
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             It "Should have the expected new repository name - by URI" {
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 $renamedRepo = Rename-GitHubRepository -Uri ($repo.RepositoryUrl) -NewName $newRepoName -Force
                 $renamedRepo.name | Should -Be $newRepoName
             }
 
             It "Should have the expected new repository name - by Elements" {
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 $renamedRepo = Rename-GitHubRepository -OwnerName $repo.owner.login -RepositoryName $repo.name -NewName $newRepoName -Confirm:$false
                 $renamedRepo.name | Should -Be $newRepoName
             }
 
             It "Should work via the pipeline" {
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 $renamedRepo = $repo | Rename-GitHubRepository -NewName $newRepoName -Confirm:$false
                 $renamedRepo.name | Should -Be $newRepoName
                 $renamedRepo.PSObject.TypeNames[0] | Should -Be 'GitHub.Repository'
             }
 
             It "Should be possible to rename with Set-GitHubRepository too" {
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 $renamedRepo = $repo | Set-GitHubRepository -NewName $newRepoName -Confirm:$false
                 $renamedRepo.name | Should -Be $newRepoName
                 $renamedRepo.PSObject.TypeNames[0] | Should -Be 'GitHub.Repository'
             }
 
             AfterEach -Scriptblock {
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 Remove-GitHubRepository -Uri "$($repo.svn_url)$suffixToAddToRepo" -Confirm:$false
             }
         }
@@ -712,6 +778,10 @@ try
             BeforeAll -ScriptBlock {
                 $repoName = ([Guid]::NewGuid().Guid)
                 $repo = New-GitHubRepository -RepositoryName $repoName
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             Context -Name 'When updating a repository with all possible settings' {
@@ -731,6 +801,7 @@ try
                         DeleteBranchOnMerge = $true
                         IsTemplate = $true
                     }
+
                     $updatedRepo = Set-GitHubRepository @updateGithubRepositoryParms
                 }
 
@@ -763,6 +834,7 @@ try
                         DisallowMergeCommit = $false
                         DisallowRebaseMerge = $true
                     }
+
                     $updatedRepo = Set-GitHubRepository @updateGithubRepositoryParms
                 }
 
@@ -785,6 +857,7 @@ try
                         RepositoryName = $repoName
                         Archived = $true
                     }
+
                     $updatedRepo = Set-GitHubRepository @updateGithubRepositoryParms
                 }
 
@@ -811,11 +884,16 @@ try
                 $repoName = ([Guid]::NewGuid().Guid)
                 $repo = New-GitHubRepository -RepositoryName $repoName -Private
 
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 $updateGithubRepositoryParms = @{
                     OwnerName = $repo.owner.login
                     RepositoryName = $repoName
                     Private = $false
                 }
+
                 $updatedRepo = Set-GitHubRepository @updateGithubRepositoryParms
             }
 
@@ -865,6 +943,11 @@ try
 
             It 'Should be removable by the pipeline' {
                 ($repo | Remove-GitHubRepository -Confirm:$false) | Should -BeNullOrEmpty
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 { $repo | Get-GitHubRepository } | Should -Throw
             }
         }
@@ -900,6 +983,11 @@ try
 
             It 'Should be removable by the pipeline' {
                 ($repo | Remove-GitHubRepository -Confirm:$false) | Should -BeNullOrEmpty
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
                 { $repo | Get-GitHubRepository } | Should -Throw
             }
         }
@@ -970,6 +1058,11 @@ try
     Describe 'GitHubRepositories\Set-GitHubRepositoryTopic' {
         BeforeAll {
             $repo = New-GitHubRepository -RepositoryName ([Guid]::NewGuid().Guid)
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
+
             $topic = Set-GitHubRepositoryTopic -OwnerName $repo.owner.login -RepositoryName $repo.name -Name $defaultRepoTopic
         }
 
@@ -1249,6 +1342,10 @@ try
     Describe 'GitHubRepositories\Enable-GitHubRepositoryVulnerabilityAlert' {
         BeforeAll {
             $repo = New-GitHubRepository -RepositoryName ([Guid]::NewGuid().Guid)
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         Context 'When Enabling GitHub Repository Vulnerability Alerts' {
@@ -1284,6 +1381,10 @@ try
     Describe 'GitHubRepositories\Enable-GitHubRepositorySecurityFix' {
         BeforeAll {
             $repo = New-GitHubRepository -RepositoryName ([Guid]::NewGuid().Guid)
+
+            # The CI build has been unreliable with this test.
+            # Adding a short sleep to ensure successive queries reflect updated state.
+            Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
         }
 
         Context 'When Enabling GitHub Repository Security Fixes' {
diff --git a/Tests/GitHubRepositoryForks.tests.ps1 b/Tests/GitHubRepositoryForks.tests.ps1
index 7ea08eb1..b4cd6f46 100644
--- a/Tests/GitHubRepositoryForks.tests.ps1
+++ b/Tests/GitHubRepositoryForks.tests.ps1
@@ -29,6 +29,10 @@ try
         Context 'When a new fork is created' {
             BeforeAll {
                 $repo = New-GitHubRepositoryFork -OwnerName $script:upstreamOwnerName -RepositoryName $script:upstreamRepositoryName
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             AfterAll {
@@ -54,6 +58,10 @@ try
             BeforeAll {
                 $upstream = Get-GitHubRepository -OwnerName $script:upstreamOwnerName -RepositoryName $script:upstreamRepositoryName
                 $repo = $upstream | New-GitHubRepositoryFork
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             AfterAll {
@@ -80,10 +88,13 @@ try
         Context 'When a new fork is created' {
             BeforeAll {
                 $repo = New-GitHubRepositoryFork -OwnerName $script:upstreamOwnerName -RepositoryName $script:upstreamRepositoryName -OrganizationName $script:organizationName
+
+                # The CI build has been unreliable with this test.
+                # Adding a short sleep to ensure successive queries reflect updated state.
+                Start-Sleep -Seconds $script:defaultSleepSecondsForReliability
             }
 
             AfterAll {
-                Start-Sleep -Seconds 3 # Trying to avoid an issue with deleting the repo if it's still being created by GitHub
                 $repo | Remove-GitHubRepository -Force
             }