diff --git a/.drone.yml b/.drone.yml
index 0ddef3c..9817c25 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -99,7 +99,7 @@ steps:
       - pandoc --template template.tex -s metrics/index.html -o metrics.tex
       - 'sed "s/All files/Metriken: ${DRONE_COMMIT_BRANCH}/g" > tmp; mv tmp metrics.tex'
       - 'sed "s/all-files/metrics:${DRONE_COMMIT_BRANCH}/g" > tmp; mv tmp metrics.tex'
-      - apk --no-cache add bash
+      - apk --no-cache add bash sed
       - bash /app/headers.sh
 
   ###### PUBLISHING