diff --git a/.github/workflows/integrate.yaml b/.github/workflows/integrate.yaml
index 4bcb39d..78c66df 100644
--- a/.github/workflows/integrate.yaml
+++ b/.github/workflows/integrate.yaml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v4.1.1"
+        uses: "actions/checkout@v4.1.6"
 
       - name: "Lint YAML files"
         uses: "ibiqlik/action-yamllint@v3.1.1"
diff --git a/.github/workflows/merge.yaml b/.github/workflows/merge.yaml
index 6212d9f..e6ca8cd 100644
--- a/.github/workflows/merge.yaml
+++ b/.github/workflows/merge.yaml
@@ -26,23 +26,23 @@ jobs:
 
     steps:
       - name: "Request review from @ergebnis-bot"
-        uses: "ergebnis/.github/actions/github/pull-request/request-review@1.8.0"
+        uses: "ergebnis/.github/actions/github/pull-request/request-review@1.9.0"
         with:
           github-token: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
           reviewer: "ergebnis-bot"
 
       - name: "Assign @ergebnis-bot"
-        uses: "ergebnis/.github/actions/github/pull-request/add-assignee@1.8.0"
+        uses: "ergebnis/.github/actions/github/pull-request/add-assignee@1.9.0"
         with:
           assignee: "ergebnis-bot"
           github-token: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
 
       - name: "Approve pull request"
-        uses: "ergebnis/.github/actions/github/pull-request/approve@1.8.0"
+        uses: "ergebnis/.github/actions/github/pull-request/approve@1.9.0"
         with:
           github-token: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
 
       - name: "Merge pull request"
-        uses: "ergebnis/.github/actions/github/pull-request/merge@1.8.0"
+        uses: "ergebnis/.github/actions/github/pull-request/merge@1.9.0"
         with:
           github-token: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index bbed7cd..dc949a5 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -17,6 +17,6 @@ jobs:
 
     steps:
       - name: "Create release"
-        uses: "ergebnis/.github/actions/github/release/create@1.8.0"
+        uses: "ergebnis/.github/actions/github/release/create@1.9.0"
         with:
           github-token: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
diff --git a/.github/workflows/triage.yaml b/.github/workflows/triage.yaml
index 6b1217b..9a2c630 100644
--- a/.github/workflows/triage.yaml
+++ b/.github/workflows/triage.yaml
@@ -17,6 +17,6 @@ jobs:
 
     steps:
       - name: "Add labels based on branch name"
-        uses: "ergebnis/.github/actions/github/pull-request/add-label-based-on-branch-name@1.8.0"
+        uses: "ergebnis/.github/actions/github/pull-request/add-label-based-on-branch-name@1.9.0"
         with:
           github-token: "${{ secrets.ERGEBNIS_BOT_TOKEN }}"
diff --git a/actions/phive/install/action.yaml b/actions/phive/install/action.yaml
index 6146dcf..00dc4a8 100644
--- a/actions/phive/install/action.yaml
+++ b/actions/phive/install/action.yaml
@@ -26,10 +26,10 @@ runs:
       shell: "bash"
 
     - name: "Cache dependencies installed with phive"
-      uses: "actions/cache@v3.3.2"
+      uses: "actions/cache@v4.0.2"
       with:
         path: "${{ inputs.phive-home }}"
-        key: "phive-hashFiles('**/phars.xml')"
+        key: "phive-${{ hashFiles('**/phars.xml') }}"
         restore-keys: "phive-"
 
     - name: "Install dependencies with phive"