diff --git a/.github/workflows/CompatHelper.yml b/.github/workflows/CompatHelper.yml
deleted file mode 100644
index cfd9bdd0..00000000
--- a/.github/workflows/CompatHelper.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-name: CompatHelper
-
-on:
-  schedule:
-    - cron: '00 00 * * *'
-
-jobs:
-  CompatHelper:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Get Julia compatibility
-        id: julia_compat
-        # NOTE: this requires a julia compat lower-bound with minor version!
-        run : |
-          version=$(grep '^julia = ' Project.toml | grep -o '".*"' | cut -d '"' -f2)
-          echo "::set-output name=version::$version"
-      - uses: julia-actions/setup-julia@latest
-        with:
-          version: ${{ steps.julia_compat.outputs.version }}
-      - name: Pkg.add("CompatHelper")
-        run: julia -e 'using Pkg; Pkg.add("CompatHelper")'
-      - name: CompatHelper.main()
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: julia -e 'using CompatHelper; CompatHelper.main()'
diff --git a/.github/workflows/update_manifest.yml b/.github/workflows/update_manifest.yml
deleted file mode 100644
index d830d810..00000000
--- a/.github/workflows/update_manifest.yml
+++ /dev/null
@@ -1,69 +0,0 @@
-name: update_manifest
-
-on:
-  schedule:
-    - cron: '0 0 * * 1'
-
-jobs:
-  update_manifest:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Get Julia compatibility
-        id: julia_compat
-        # NOTE: this requires a julia compat lower-bound with minor version!
-        run : |
-          version=$(grep '^julia = ' Project.toml | grep -o '".*"' | cut -d '"' -f2)
-          echo "::set-output name=version::$version"
-      - uses: julia-actions/setup-julia@latest
-        with:
-          version: ${{ steps.julia_compat.outputs.version }}
-      - name: Update packages
-        id: pkg_update
-        run: |
-          log=$(julia --project -e 'using Pkg; Pkg.update()')
-          log="${log//'%'/'%25'}"
-          log="${log//$'\n'/'%0A'}"
-          log="${log//$'\r'/'%0D'}"
-          echo "::set-output name=log::$log"
-      - name: Get status
-        id: pkg_status
-        run: |
-          log=$(julia --project -e 'using Pkg; VERSION >= v"1.3" ? Pkg.status(diff=true) : Pkg.status()')
-          log="${log//'%'/'%25'}"
-          log="${log//$'\n'/'%0A'}"
-          log="${log//$'\r'/'%0D'}"
-          echo "::set-output name=log::$log"
-      - name: Get Julia version
-        id: version
-        run: |
-          log=$(julia -e "println(Base.VERSION)")
-          echo "::set-output name=log::$log"
-      - name: Create pull request
-        uses: peter-evans/create-pull-request@v2
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-          commit-message: |
-            Update dependencies.
-
-            ${{ steps.pkg_status.outputs.log }}
-          title: Update manifest
-          reviewers: maleadt
-          body: |
-            This pull request updates the manifest for Julia v${{ steps.version.outputs.log }}:
-
-            ```
-            ${{ steps.pkg_status.outputs.log }}
-            ```
-
-            <details><summary>Click here for the full update log.</summary>
-            <p>
-
-            ```
-            ${{ steps.pkg_update.outputs.log }}
-            ```
-
-            </p>
-            </details>
-          branch: update_manifest
-