diff --git a/.woodpecker.yml b/.woodpecker.yml
index c95378c..2aab2ed 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -12,7 +12,7 @@ steps:
       - git config --local user.email "$(git log --format=%ae | head -n 1)"
       - shasum=$(sha256sum install.sh)
       - oldShasum=$(grep -oP "^[[:alnum:]]{64}" README.md)
-      - [ "$shasum" = "$oldShasum" ] || sed -i "s/$oldShasum/$shasum/" README.md
+      - if ! [ "$shasum" = "$oldShasum" ]; then sed -i "s/$oldShasum/$shasum/" README.md; fi
       - if [ -z "$(git status --porcelain)" ]; then exit 0; fi
       - git add README.md
       - git commit -m "Update sha256sum"