diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d8206829d915..d78148c8fb6f 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -59,13 +59,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -109,13 +109,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -148,7 +148,7 @@ jobs:
         shell: cmd
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Test
         run: sbt ";scala3-bootstrapped/compile"
@@ -190,7 +190,7 @@ jobs:
         shell: cmd
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Test
         run: sbt ";dist/pack ;scala3-bootstrapped/compile ;scala3-bootstrapped/test"
@@ -226,13 +226,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -267,13 +267,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -314,13 +314,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -361,13 +361,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -408,13 +408,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -455,13 +455,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -499,13 +499,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -553,13 +553,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -595,13 +595,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -642,13 +642,13 @@ jobs:
         run: git -c "http.https://github.com/.extraheader=" fetch --recurse-submodules=no "https://github.com/lampepfl/dotty" && git reset --hard FETCH_HEAD || true
 
       - name: Checkout cleanup script
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cleanup
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Add SBT proxy repositories
         run: cp -vf .github/workflows/repositories /root/.sbt/ ; true
@@ -715,7 +715,7 @@ jobs:
     if: "failure() && github.event_name == 'schedule'"
     steps:
       - name: Checkout issue template
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Open an issue
         uses: JasonEtco/create-an-issue@v2
diff --git a/.github/workflows/cla.yml b/.github/workflows/cla.yml
index 175841b8edfa..3dd442bedcae 100644
--- a/.github/workflows/cla.yml
+++ b/.github/workflows/cla.yml
@@ -12,7 +12,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - run: ./project/scripts/check-cla.sh
       if: github.event_name == 'pull_request'
       env:
diff --git a/.github/workflows/releases.yml b/.github/workflows/releases.yml
index 7420b2e2c621..7415759078ac 100644
--- a/.github/workflows/releases.yml
+++ b/.github/workflows/releases.yml
@@ -24,7 +24,7 @@ jobs:
         run: .github/workflows/cleanup.sh
 
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Publish to SDKMAN
         run: .github/workflows/scripts/publish-sdkman.sh
diff --git a/.github/workflows/scaladoc.yaml b/.github/workflows/scaladoc.yaml
index d5135aed3483..83837f890bcc 100644
--- a/.github/workflows/scaladoc.yaml
+++ b/.github/workflows/scaladoc.yaml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Cache Coursier
         uses: actions/cache@v1
@@ -96,7 +96,7 @@ jobs:
 
     steps:
       - name: Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up JDK 8
         uses: actions/setup-java@v1