diff --git a/requirements-dev.txt b/requirements-dev.txt
index ae65b0f7..0120291e 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-mock==4.0.3
+mock==5.0.0
 nose2[coverage_plugin]==0.12.0
 cov-core==1.15.0
 black==22.12.0