diff --git a/.github/workflows/__debug-artifacts.yml b/.github/workflows/__debug-artifacts.yml
index 313f10f2c..fe873d251 100644
--- a/.github/workflows/__debug-artifacts.yml
+++ b/.github/workflows/__debug-artifacts.yml
@@ -41,6 +41,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: ./../action/init
       with:
         tools: ${{ steps.prepare-test.outputs.tools-url }}
diff --git a/.github/workflows/__go-custom-queries.yml b/.github/workflows/__go-custom-queries.yml
index 2e71b5cff..5f700d23b 100644
--- a/.github/workflows/__go-custom-queries.yml
+++ b/.github/workflows/__go-custom-queries.yml
@@ -44,6 +44,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: actions/setup-go@v2
       with:
         go-version: ^1.13.1
diff --git a/.github/workflows/__multi-language-autodetect.yml b/.github/workflows/__multi-language-autodetect.yml
index d7b43c477..4e0b064f0 100644
--- a/.github/workflows/__multi-language-autodetect.yml
+++ b/.github/workflows/__multi-language-autodetect.yml
@@ -41,6 +41,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: ./../action/init
       with:
         db-location: ${{ runner.temp }}/customDbLocation
diff --git a/.github/workflows/__packaging-config-inputs-js.yml b/.github/workflows/__packaging-config-inputs-js.yml
index 824a0041b..7bd08c291 100644
--- a/.github/workflows/__packaging-config-inputs-js.yml
+++ b/.github/workflows/__packaging-config-inputs-js.yml
@@ -35,6 +35,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: ./../action/init
       with:
         config-file: .github/codeql/codeql-config-packaging3.yml
diff --git a/.github/workflows/__packaging-config-js.yml b/.github/workflows/__packaging-config-js.yml
index 0a2ece98a..759a08e8d 100644
--- a/.github/workflows/__packaging-config-js.yml
+++ b/.github/workflows/__packaging-config-js.yml
@@ -35,6 +35,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: ./../action/init
       with:
         config-file: .github/codeql/codeql-config-packaging.yml
diff --git a/.github/workflows/__packaging-inputs-js.yml b/.github/workflows/__packaging-inputs-js.yml
index 686d6f32f..08e724a28 100644
--- a/.github/workflows/__packaging-inputs-js.yml
+++ b/.github/workflows/__packaging-inputs-js.yml
@@ -35,6 +35,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: ./../action/init
       with:
         config-file: .github/codeql/codeql-config-packaging2.yml
diff --git a/.github/workflows/__remote-config.yml b/.github/workflows/__remote-config.yml
index de01cd994..84aa3c81d 100644
--- a/.github/workflows/__remote-config.yml
+++ b/.github/workflows/__remote-config.yml
@@ -44,6 +44,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: ./../action/init
       with:
         tools: ${{ steps.prepare-test.outputs.tools-url }}
diff --git a/.github/workflows/__split-workflow.yml b/.github/workflows/__split-workflow.yml
index dc9d41116..3520aca93 100644
--- a/.github/workflows/__split-workflow.yml
+++ b/.github/workflows/__split-workflow.yml
@@ -35,6 +35,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: ./../action/init
       with:
         config-file: .github/codeql/codeql-config-packaging3.yml
diff --git a/.github/workflows/__test-local-codeql.yml b/.github/workflows/__test-local-codeql.yml
index c2e067cd5..6d9389064 100644
--- a/.github/workflows/__test-local-codeql.yml
+++ b/.github/workflows/__test-local-codeql.yml
@@ -35,6 +35,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - name: Fetch a CodeQL bundle
       shell: bash
       env:
diff --git a/.github/workflows/__unset-environment.yml b/.github/workflows/__unset-environment.yml
index fbff545d5..0ca4cb25c 100644
--- a/.github/workflows/__unset-environment.yml
+++ b/.github/workflows/__unset-environment.yml
@@ -41,6 +41,8 @@ jobs:
       uses: ./.github/prepare-test
       with:
         version: ${{ matrix.version }}
+    - name: Initialize dotnet
+      run: dotnet restore
     - uses: ./../action/init
       with:
         db-location: ${{ runner.temp }}/customDbLocation
diff --git a/.github/workflows/pr-checks.yml b/.github/workflows/pr-checks.yml
index 704f9e31d..adf567f55 100644
--- a/.github/workflows/pr-checks.yml
+++ b/.github/workflows/pr-checks.yml
@@ -163,6 +163,9 @@ jobs:
           cd ../action/runner
           npm install
           npm run build-runner
+      
+      - name: Initialize dotnet
+        run: dotnet restore
 
       - name: Run init
         run: |
@@ -200,6 +203,9 @@ jobs:
           cd ../action/runner
           npm install
           npm run build-runner
+      
+      - name: Initialize dotnet
+        run: dotnet restore
 
       - name: Run init
         run: |
@@ -246,6 +252,9 @@ jobs:
           npm install
           npm run build-runner
 
+      - name: Initialize dotnet
+        run: dotnet restore
+
       - name: Run init
         run: |
           ../action/runner/dist/codeql-runner-macos init --repository $GITHUB_REPOSITORY --languages csharp --github-url $GITHUB_SERVER_URL --github-auth ${{ github.token }}
diff --git a/pr-checks/checks/debug-artifacts.yml b/pr-checks/checks/debug-artifacts.yml
index fd852f38e..ee8ae8dd6 100644
--- a/pr-checks/checks/debug-artifacts.yml
+++ b/pr-checks/checks/debug-artifacts.yml
@@ -2,6 +2,8 @@ name: "Debug artifact upload"
 description: "Checks that debugging artifacts are correctly uploaded"
 os: ["ubuntu-latest", "macos-latest"]
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: ./../action/init
     with:
       tools: ${{ steps.prepare-test.outputs.tools-url }}
diff --git a/pr-checks/checks/go-custom-queries.yml b/pr-checks/checks/go-custom-queries.yml
index c17b9348a..99a9351bb 100644
--- a/pr-checks/checks/go-custom-queries.yml
+++ b/pr-checks/checks/go-custom-queries.yml
@@ -1,6 +1,8 @@
 name: "Go: Custom queries"
 description: "Checks that Go works in conjunction with a config file specifying custom queries"
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: actions/setup-go@v2
     with:
       go-version: "^1.13.1"
diff --git a/pr-checks/checks/multi-language-autodetect.yml b/pr-checks/checks/multi-language-autodetect.yml
index c9238b9b9..a6d3d1cfe 100644
--- a/pr-checks/checks/multi-language-autodetect.yml
+++ b/pr-checks/checks/multi-language-autodetect.yml
@@ -2,6 +2,8 @@ name: "Multi-language repository"
 description: "An end-to-end integration test of a multi-language repository using automatic language detection"
 os: ["ubuntu-latest", "macos-latest"]
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: ./../action/init
     with:
       db-location: "${{ runner.temp }}/customDbLocation"
diff --git a/pr-checks/checks/packaging-config-inputs-js.yml b/pr-checks/checks/packaging-config-inputs-js.yml
index eb5a69337..abd84188b 100644
--- a/pr-checks/checks/packaging-config-inputs-js.yml
+++ b/pr-checks/checks/packaging-config-inputs-js.yml
@@ -3,6 +3,8 @@ description: "Checks that specifying packages using a combination of a config fi
 versions: ["nightly-20210831"] # This CLI version is known to work with package used in this test
 os: ["ubuntu-latest", "macos-latest"]
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: ./../action/init
     with:
       config-file: ".github/codeql/codeql-config-packaging3.yml"
diff --git a/pr-checks/checks/packaging-config-js.yml b/pr-checks/checks/packaging-config-js.yml
index 6a8c5135c..4e6eaa5bb 100644
--- a/pr-checks/checks/packaging-config-js.yml
+++ b/pr-checks/checks/packaging-config-js.yml
@@ -3,6 +3,8 @@ description: "Checks that specifying packages using only a config file works"
 versions: ["nightly-20210831"] # This CLI version is known to work with package used in this test
 os: ["ubuntu-latest", "macos-latest"]
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: ./../action/init
     with:
       config-file: ".github/codeql/codeql-config-packaging.yml"
diff --git a/pr-checks/checks/packaging-inputs-js.yml b/pr-checks/checks/packaging-inputs-js.yml
index 34368581e..85b7741ec 100644
--- a/pr-checks/checks/packaging-inputs-js.yml
+++ b/pr-checks/checks/packaging-inputs-js.yml
@@ -3,6 +3,8 @@ description: "Checks that specifying packages using the input to the Action work
 versions: ["nightly-20210831"] # This CLI version is known to work with package used in this test
 os: ["ubuntu-latest", "macos-latest"]
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: ./../action/init
     with:
       config-file: ".github/codeql/codeql-config-packaging2.yml"
diff --git a/pr-checks/checks/remote-config.yml b/pr-checks/checks/remote-config.yml
index 8ad8fa073..4b0078db1 100644
--- a/pr-checks/checks/remote-config.yml
+++ b/pr-checks/checks/remote-config.yml
@@ -1,6 +1,8 @@
 name: "Remote config file"
 description: "Checks that specifying packages using only a config file works"
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: ./../action/init
     with:
       tools: ${{ steps.prepare-test.outputs.tools-url }}
diff --git a/pr-checks/checks/split-workflow.yml b/pr-checks/checks/split-workflow.yml
index 97d233c33..7921621e9 100644
--- a/pr-checks/checks/split-workflow.yml
+++ b/pr-checks/checks/split-workflow.yml
@@ -3,6 +3,8 @@ description: "Tests a split-up workflow in which we first build a database and l
 versions: ["nightly-20210831"] # This CLI version is known to work with package used in this test
 os: ["ubuntu-latest", "macos-latest"]
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: ./../action/init
     with:
       config-file: ".github/codeql/codeql-config-packaging3.yml"
diff --git a/pr-checks/checks/test-local-codeql.yml b/pr-checks/checks/test-local-codeql.yml
index 99394b5c6..90b910e99 100644
--- a/pr-checks/checks/test-local-codeql.yml
+++ b/pr-checks/checks/test-local-codeql.yml
@@ -3,6 +3,8 @@ description: "Tests using a CodeQL bundle from a local file rather than a URL"
 versions: ["nightly-latest"]
 os: ["ubuntu-latest"]
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - name: Fetch a CodeQL bundle
     shell: bash
     env:
diff --git a/pr-checks/checks/unset-environment.yml b/pr-checks/checks/unset-environment.yml
index 3a8abd48f..588befb2d 100644
--- a/pr-checks/checks/unset-environment.yml
+++ b/pr-checks/checks/unset-environment.yml
@@ -2,6 +2,8 @@ name: "Test unsetting environment variables"
 description: "An end-to-end integration test that unsets some environment variables"
 os: ["ubuntu-latest"]
 steps:
+  - name: Initialize dotnet
+    run: dotnet restore
   - uses: ./../action/init
     with:
       db-location: "${{ runner.temp }}/customDbLocation"