diff --git a/requirements.txt b/requirements.txt
index 7ca8230..bc26498 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2021.10.8
+certifi==2023.7.22
 charset-normalizer==2.0.10
 idna==3.3
 numpy==1.23.5
diff --git a/setup.cfg b/setup.cfg
index 0de32fa..56ac8e8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -13,7 +13,7 @@ license = BSD-3-Clause
 python_requires = >=3.8
 packages = find:
 install_requires =
-        certifi==2021.10.8
+        certifi==2023.7.22
         charset-normalizer==2.0.10
         idna==3.3
         numpy==1.23.5