diff --git a/Dockerfile.server b/Dockerfile.server
index 50c27bc..6acad73 100644
--- a/Dockerfile.server
+++ b/Dockerfile.server
@@ -78,7 +78,7 @@ RUN groupadd -r pptruser && useradd -r -g pptruser -G audio,video pptruser \
     && chown -R pptruser:pptruser /home/pptruser \
     && chown -R pptruser:pptruser ./node_modules \
     && chown -R pptruser:pptruser ./package.json \
-    && chown -R pptruser:pptruser ./package-lock.json
+    && chown -R pptruser:pptruser ./yarn.lock
 
 # Run everything after as non-privileged user.
 USER pptruser