diff --git a/.drone.yml b/.drone.yml
index 7890f76..48ee14f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -17,12 +17,12 @@ steps:
   - name: reuse
     image: fsfe/reuse:4.0.3-debian@sha256:20e70745bf4aa1d37f4ac054f4df045e4f7df7f4ec95d7abd2e263aa1323f399
   - name: lint
-    image: node:20.17.0@sha256:48db4f6ea21d134be744207225753a1730c4bc1b4cdf836d44511c36bf0e34d7
+    image: node:20.17.0-alpine@sha256:2d07db07a2df6830718ae2a47db6fedce6745f5bcd174c398f2acdda90a11c03
     commands:
       - npm ci
       - npm run lint -- --no-fix
   - name: audit
-    image: node:20.17.0@sha256:48db4f6ea21d134be744207225753a1730c4bc1b4cdf836d44511c36bf0e34d7
+    image: node:20.17.0-alpine@sha256:2d07db07a2df6830718ae2a47db6fedce6745f5bcd174c398f2acdda90a11c03
     commands:
       - npm install -g better-npm-audit
       - better-npm-audit audit --production --level=moderate
@@ -33,6 +33,9 @@ steps:
       repo: git.wtf-eg.de/kompetenzinventar/frontend
       target: ki-frontend
       dry_run: true
+    when:
+      event:
+        - pull_request
 
 ---
 kind: pipeline
@@ -101,7 +104,7 @@ steps:
   - name: reuse
     image: fsfe/reuse:4.0.3-debian@sha256:20e70745bf4aa1d37f4ac054f4df045e4f7df7f4ec95d7abd2e263aa1323f399
   - name: lint
-    image: node:20.17.0@sha256:48db4f6ea21d134be744207225753a1730c4bc1b4cdf836d44511c36bf0e34d7
+    image: node:20.17.0-alpine@sha256:2d07db07a2df6830718ae2a47db6fedce6745f5bcd174c398f2acdda90a11c03
     commands:
       - npm ci
       - npm run lint -- --no-fix