diff --git a/requirements.txt b/requirements.txt
index 8e02494..0d83735 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ bagit==1.6.4
 bdbag==1.2.4
 bleach==2.1.1
 cachier==1.2.2
-certifi==2017.7.27.1
+certifi==2022.12.7
 chardet==3.0.4
 click==6.7
 clickclick==1.2.2
diff --git a/requirements_bicluster.txt b/requirements_bicluster.txt
index 559137f..2d972f6 100644
--- a/requirements_bicluster.txt
+++ b/requirements_bicluster.txt
@@ -1,6 +1,6 @@
 bagit==1.6.4
 bdbag==1.4.1
-certifi==2018.8.24
+certifi==2022.12.7
 chardet==3.0.4
 click==6.7
 decorator==4.3.0