diff --git a/.github/workflows/ember_with_plugins.yml b/.github/workflows/ember_with_plugins.yml
index ecb934bb56aec..c2913f5254fc0 100644
--- a/.github/workflows/ember_with_plugins.yml
+++ b/.github/workflows/ember_with_plugins.yml
@@ -26,7 +26,7 @@ jobs:
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
       - name: Yarn cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         id: yarn-cache
         with:
           path: ${{ steps.yarn-cache-dir.outputs.dir }}
diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index ef6906dd78910..1612417852044 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -28,7 +28,7 @@ jobs:
           git config --global user.name "Discourse CI"
 
       - name: Bundler cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: vendor/bundle
           key: ${{ runner.os }}-gem-${{ hashFiles('**/Gemfile.lock') }}
@@ -49,7 +49,7 @@ jobs:
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
       - name: Yarn cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         id: yarn-cache
         with:
           path: ${{ steps.yarn-cache-dir.outputs.dir }}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9af681a4bd769..8e12634f1c4ef 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -63,7 +63,7 @@ jobs:
           sudo -u postgres psql -c "CREATE ROLE $PGUSER LOGIN SUPERUSER PASSWORD '$PGPASSWORD';"
 
       - name: Bundler cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: vendor/bundle
           key: ${{ runner.os }}-gem-${{ hashFiles('**/Gemfile.lock') }}
@@ -84,7 +84,7 @@ jobs:
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
       - name: Yarn cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         id: yarn-cache
         with:
           path: ${{ steps.yarn-cache-dir.outputs.dir }}
@@ -104,7 +104,7 @@ jobs:
         run: bin/rake plugin:pull_compatible_all
 
       - name: Fetch app state cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         id: app-cache
         with:
           path: tmp/app-cache
@@ -216,7 +216,7 @@ jobs:
         run: echo "::set-output name=dir::$(yarn cache dir)"
 
       - name: Yarn cache
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         id: yarn-cache
         with:
           path: ${{ steps.yarn-cache-dir.outputs.dir }}