diff --git a/requirements-dev.txt b/requirements-dev.txt
index c8a93ba..68d536b 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,7 +7,7 @@ attrs==19.3.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2,
 babel==2.8.0; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'
 black==19.10b0
 bleach==3.1.5; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
-certifi==2020.4.5.2
+certifi==2023.7.22
 chardet==3.0.4
 click==7.1.2; python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'
 colorlog==4.1.0
diff --git a/requirements.txt b/requirements.txt
index 113dafb..0159cab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 -i https://pypi.org/simple
-certifi==2020.4.5.2
+certifi==2023.7.22
 chardet==3.0.4
 enum34==1.1.10; python_version < '3.4'
 google-resumable-media[requests]==0.5.1