diff --git a/samples/samples/requirements-test.txt b/samples/samples/requirements-test.txt
index 55c9ea9350..7b3919c98e 100644
--- a/samples/samples/requirements-test.txt
+++ b/samples/samples/requirements-test.txt
@@ -1,4 +1,4 @@
 pytest==7.2.0
 pytest-dependency==0.5.1
-mock==4.0.3
+mock==5.0.0
 google-cloud-testutils==1.3.3