diff --git a/requirements-dev.txt b/requirements-dev.txt
index dfeed18d8..ba309a847 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -11,7 +11,7 @@ mypy==0.730
 pytest==5.2.1
 pytest-asyncio==0.10.0
 pytest-cov==2.7.1
-pytest-mock==1.11.0
+pytest-mock==1.11.1
 pytest-random-order==1.0.4
 
 # Convert jupyter notebooks to markdown documents