diff --git a/test/upstream-requirements-py27.txt b/test/upstream-requirements-py27.txt
index a5a48c9ab..6ec01588a 100644
--- a/test/upstream-requirements-py27.txt
+++ b/test/upstream-requirements-py27.txt
@@ -3,7 +3,7 @@ attrs==21.2.0
 backports.functools-lru-cache==1.6.4
 boto3==1.17.92
 botocore==1.20.92
-cffi==1.14.5
+cffi==1.15.0
 configparser==4.0.2
 contextlib2==0.6.0.post1
 coverage==5.5
diff --git a/test/upstream-requirements-py37.txt b/test/upstream-requirements-py37.txt
index a4603ddf8..9d7b35c7d 100644
--- a/test/upstream-requirements-py37.txt
+++ b/test/upstream-requirements-py37.txt
@@ -1,7 +1,7 @@
 attrs==21.2.0
 boto3==1.17.92
 botocore==1.20.92
-cffi==1.14.5
+cffi==1.15.0
 coverage==5.5
 cryptography==3.4.7
 importlib-metadata==4.5.0