diff --git a/AutoDiff/requirements.txt b/AutoDiff/requirements.txt
index dc07874..0b6f735 100644
--- a/AutoDiff/requirements.txt
+++ b/AutoDiff/requirements.txt
@@ -1,7 +1,7 @@
 atomicwrites==1.3.0
 attrs==19.3.0
 bleach==3.1.0
-certifi==2019.9.11
+certifi==2022.12.7
 chardet==3.0.4
 coverage==4.5.4
 cycler==0.10.0
diff --git a/requirements.txt b/requirements.txt
index dc07874..0b6f735 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 atomicwrites==1.3.0
 attrs==19.3.0
 bleach==3.1.0
-certifi==2019.9.11
+certifi==2022.12.7
 chardet==3.0.4
 coverage==4.5.4
 cycler==0.10.0