diff --git a/stack.yaml b/stack.yaml
index 183ddb10d..439696f54 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -33,3 +33,5 @@ extra-deps:
 ghc-options:
    "$locals": -fhide-source-paths -Wno-missing-home-modules
 resolver: lts-14.6
+nix:
+  packages: [zlib]