diff --git a/stack.yaml b/stack.yaml
index 45e0a95..5f0fda1 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -28,11 +28,11 @@ resolver: lts-16.13
 #   subdirs:
 #   - auto-update
 #   - wai
-nix:
-  enable: true
-  packages:
-    - "zlib"
-    - "tcl"
+#nix:
+#  enable: true
+#  packages:
+#    - "zlib"
+#    - "tcl"
 
 packages:
 - .