diff --git a/devtools/conda-envs/test_env.yaml b/devtools/conda-envs/test_env.yaml
index 0d9573b..7682b0c 100644
--- a/devtools/conda-envs/test_env.yaml
+++ b/devtools/conda-envs/test_env.yaml
@@ -3,7 +3,7 @@ channels:
   - conda-forge
 dependencies:
     # Base depends
-  - gufe
+  - gufe >=0.9.5
   - numpy
   - openfe  # TODO: Remove once we don't depend on openfe
   - openff-units