diff --git a/Dockerfile b/Dockerfile
index 80b4b56..9b230c3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -47,7 +47,7 @@ RUN python3.8 -m ipykernel install
 #############################
 ARG JULIA_MAJOR=1
 ARG JULIA_MINOR=9
-ARG JULIA_PATCH=2
+ARG JULIA_PATCH=4
 ARG JULIA_VER=$JULIA_MAJOR.$JULIA_MINOR.$JULIA_PATCH
 # this is where we install default packages
 ENV JULIA_PKGDIR=/opt/julia