diff --git a/thelounge/Dockerfile b/thelounge/Dockerfile
index aff50f6..01f929e 100644
--- a/thelounge/Dockerfile
+++ b/thelounge/Dockerfile
@@ -14,7 +14,7 @@ RUN \
     \
     && yarn global add \
         modclean@3.0.0-beta.1 \
-        thelounge@3.3.0 \
+        thelounge@4.0.0 \
     \
     && modclean \
         --path /usr/local/share/.config/yarn/global \