diff --git a/test_requirements.txt b/test_requirements.txt
index 7333852..215b026 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -1,4 +1,4 @@
-certifi==2015.11.20.1
+certifi==2023.7.22
 funcsigs==0.4
 mock==1.3.0
 opbeat==3.1.3