diff --git a/build/requirements.txt b/build/requirements.txt
index b2cc897..8fa8152 100644
--- a/build/requirements.txt
+++ b/build/requirements.txt
@@ -1,7 +1,7 @@
 absl-py==0.9.0
 astor==0.8.1
 cachetools==4.0.0
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 cleverhans==3.0.1
 cloudpickle==1.2.2