diff --git a/environment_min.yml b/environment_min.yml
index 1202336..e058630 100644
--- a/environment_min.yml
+++ b/environment_min.yml
@@ -19,7 +19,7 @@ dependencies:
   - openbabel>=3
   - rdkit>=2021.09.2
   - acpype>=2022
-  - openff-toolkit>= 0.10.2
+  - openff-toolkit>=0.10.2
   - pip:
     - black
     - regex