diff --git a/requirements.txt b/requirements.txt
index d2a82bd..2fb2e6a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 ase==3.19.2
 bleach==3.1.5
-certifi==2020.6.20
+certifi==2022.12.7
 cffi==1.14.0
 chardet==3.0.4
 colorama==0.4.3
diff --git a/test_requirements.txt b/test_requirements.txt
index d2a82bd..2fb2e6a 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -1,6 +1,6 @@
 ase==3.19.2
 bleach==3.1.5
-certifi==2020.6.20
+certifi==2022.12.7
 cffi==1.14.0
 chardet==3.0.4
 colorama==0.4.3