diff --git a/Dockerfile b/Dockerfile
index ed00d56..57455fa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM lycheeverse/lychee:latest
+FROM lycheeverse/lychee:0.7.1@sha256:ff7c1b7490ed7e3cf5afc42ddf7ed32321291ae3e8c313214a074bb171117a3b
 
 LABEL maintainer="Matthias Endler <matthias-endler@gmx.net>"
 LABEL repository="https://github.com/lycheeverse/lychee-action"