diff --git a/env_osx64.yml b/env_osx64.yml
index 74bf21e8..f3ea7655 100644
--- a/env_osx64.yml
+++ b/env_osx64.yml
@@ -10,5 +10,10 @@ dependencies:
   - wand  # Python bindings for ImageMagick
   - pip
   - pip:
+      - black
       - hatch
+      - mock
       - pytest
+      - pytest-benchmark
+      - pytest-cov
+      - PyYAML
\ No newline at end of file
diff --git a/environment.yml b/environment.yml
index f47d16c7..ce923a98 100644
--- a/environment.yml
+++ b/environment.yml
@@ -10,5 +10,10 @@ dependencies:
   - wand  # Python bindings for ImageMagick
   - pip
   - pip:
-      - pytest
+      - black
       - hatch
+      - mock
+      - pytest
+      - pytest-benchmark
+      - pytest-cov
+      - PyYAML