diff --git a/environment.yml b/environment.yml
index 47fe8e4c2a640..ce68dccca0c07 100644
--- a/environment.yml
+++ b/environment.yml
@@ -20,6 +20,7 @@ dependencies:
   - isort
   - moto
   - pytest>=4.0
+  - pytest-mock
   - sphinx
   - numpydoc
 
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 76aaeefa648f4..22c01ebcef7f0 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -11,6 +11,7 @@ hypothesis>=3.82
 isort
 moto
 pytest>=4.0
+pytest-mock
 sphinx
 numpydoc
 beautifulsoup4>=4.2.1