diff --git a/Dockerfile b/Dockerfile
index 1f210ccd..fd83ad15 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ COPY package.json ./
 RUN pnpm install --offline --ignore-scripts --no-optional
 
 # Copy assets and translations to build
-COPY .* *.config.ts *.config.js *.config.cts ./
+COPY .* *.config.ts *.config.js *.config.cjs ./
 COPY assets ./assets
 COPY locales ./locales
 COPY public ./public
diff --git a/postcss.config.cts b/postcss.config.cjs
similarity index 100%
rename from postcss.config.cts
rename to postcss.config.cjs