diff --git a/Dockerfile b/Dockerfile
index e52345a..1b10801 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -57,8 +57,9 @@ COPY --from=builder /app/.next/static/pagefind ./.next/static/pagefind
 
 # Create cache directory with correct permissions
 # IsomorphicBridge needs write access to .git and content for commits
+# TinaCMS media manager writes uploads to public/
 RUN mkdir -p .next/cache && \
-    chown -R nextjs:nodejs .next/cache .git content tina
+    chown -R nextjs:nodejs .next/cache .git content tina public
 
 USER nextjs