diff --git a/Dockerfile b/Dockerfile
index 5859903..b5e1bca 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM haskell:8.4 as build-env
+FROM haskell:8.4.3 as build-env
 
 WORKDIR /toodles-app