diff --git a/.github/workflows/links.yml b/.github/workflows/links.yml
index 9ce1c75..4312bcd 100644
--- a/.github/workflows/links.yml
+++ b/.github/workflows/links.yml
@@ -22,7 +22,7 @@ jobs:
               run: echo "TIMESTAMP=$(date +%s)" >> "$GITHUB_ENV"
 
             - name: Restore lychee cache
-              uses: actions/cache@6849a6489940f00c2f30c0fb92c6274307ccb58a # v4
+              uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4
               with:
                   path: .lycheecache
                   key: cache-lychee-${{ env.TIMESTAMP }}
diff --git a/checks/zeebe/connectivity.sh b/checks/zeebe/connectivity.sh
index 1900d7e..fa356fb 100755
--- a/checks/zeebe/connectivity.sh
+++ b/checks/zeebe/connectivity.sh
@@ -25,7 +25,7 @@ ZEEBE_TOKEN_SCOPE="${ZEEBE_TOKEN_SCOPE:-"camunda-identity"}"
 API_PROTOCOL="${API_PROTOCOL:-"grpc"}"
 
 # renovate: datasource=github-releases depName=camunda/zeebe
-ZEEBE_DEFAULT_VERSION="8.6.5"
+ZEEBE_DEFAULT_VERSION="8.6.6"
 ZEEBE_VERSION="${ZEEBE_VERSION:-$ZEEBE_DEFAULT_VERSION}"
 
 # Function to display script usage