diff --git a/src/libraries/System.Globalization/tests/CompareInfo/CompareInfoTests.IndexOf.cs b/src/libraries/System.Globalization/tests/CompareInfo/CompareInfoTests.IndexOf.cs
index fa12fb9cec560..58d66e93be6d6 100644
--- a/src/libraries/System.Globalization/tests/CompareInfo/CompareInfoTests.IndexOf.cs
+++ b/src/libraries/System.Globalization/tests/CompareInfo/CompareInfoTests.IndexOf.cs
@@ -183,7 +183,6 @@ public static IEnumerable<object[]> IndexOf_U_WithDiaeresis_TestData()
         [MemberData(nameof(IndexOf_TestData))]
         [MemberData(nameof(IndexOf_Aesc_Ligature_TestData))]
         [MemberData(nameof(IndexOf_U_WithDiaeresis_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/74179", TestRuntimes.Mono)]
         public void IndexOf_String(CompareInfo compareInfo, string source, string value, int startIndex, int count, CompareOptions options, int expected, int expectedMatchLength)
         {
             if (value.Length == 1)
diff --git a/src/libraries/System.Globalization/tests/Invariant/InvariantMode.cs b/src/libraries/System.Globalization/tests/Invariant/InvariantMode.cs
index 8416d0e3f7bdb..361c39ec4272b 100644
--- a/src/libraries/System.Globalization/tests/Invariant/InvariantMode.cs
+++ b/src/libraries/System.Globalization/tests/Invariant/InvariantMode.cs
@@ -864,7 +864,6 @@ private static StringComparison GetStringComparison(CompareOptions options)
 
         [ConditionalTheory(nameof(PredefinedCulturesOnlyIsDisabled))]
         [MemberData(nameof(IndexOf_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/74179", TestRuntimes.Mono)]
         public void TestIndexOf(string source, string value, int startIndex, int count, CompareOptions options, int result)
         {
             foreach (string cul in s_cultureNames)
@@ -912,7 +911,6 @@ static void TestCore(CompareInfo compareInfo, string source, string value, int s
 
         [ConditionalTheory(nameof(PredefinedCulturesOnlyIsDisabled))]
         [MemberData(nameof(LastIndexOf_TestData))]
-        [ActiveIssue("https://github.com/dotnet/runtime/issues/74179", TestRuntimes.Mono)]
         public void TestLastIndexOf(string source, string value, int startIndex, int count, CompareOptions options, int result)
         {
             foreach (string cul in s_cultureNames)