diff --git a/environment-dev.yml b/environment-dev.yml
index 586eb68f..e4285d7c 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -13,7 +13,6 @@ dependencies:
   - CppInterOp>=1.5.0
   - pugixml
   - cpp-argparse>=3.0,<4.0
-  - zlib
   # Test dependencies
   - pytest
   - jupyter_kernel_test<0.8