diff --git a/Dockerfile b/Dockerfile
index 6ff6f00..a28977c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -45,6 +45,17 @@ RUN git clone https://github.com/Sahith59/OverLeaf_MCP.git . \
 # ---------------------------------------------------------------
 RUN npx playwright install chromium
 
+# ---------------------------------------------------------------
+# 5. Force headless mode in the built code
+#    The source launches Playwright with headless:false (designed
+#    for desktop). We patch the compiled JS to force headless:true.
+# ---------------------------------------------------------------
+RUN find /app/dist -name '*.js' -exec sed -i \
+    -e 's/headless:\s*false/headless:true/g' \
+    -e 's/headless:!1/headless:true/g' \
+    -e "s/headless:!0/headless:true/g" \
+    {} +
+
 # ---------------------------------------------------------------
 # 5. Create data directories
 # ---------------------------------------------------------------