diff --git a/Dockerfile b/Dockerfile
index d357141b5..7bea46853 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN stack setup
 # in parallel. However, this can cause OOM issues as the linking step
 # in GHC can be expensive. If the build fails, try specifying the
 # '-j1' flag to force the build to run sequentially.
-RUN stack install
+RUN stack install -j1
 
 FROM debian:buster