diff --git a/environment.yaml b/environment.yaml
index ed4b09f..989776f 100644
--- a/environment.yaml
+++ b/environment.yaml
@@ -11,7 +11,7 @@ dependencies:
   - python=3.10
   - pip
   - pip:
-    - numpy=1.26.4
+    - numpy==1.26.4
     - pytest
     - pre-commit
     - mypy