diff --git a/doc/requirements.txt b/doc/requirements.txt
index 697f1e4..623de0d 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -4,7 +4,7 @@ autograd==1.4
 autoray==0.3.2
 Babel==2.10.3
 cachetools==5.2.0
-certifi==2022.12.7
+certifi==2023.7.22
 charset-normalizer==2.0.12
 docutils==0.18.1
 future==0.18.2
diff --git a/requirements.txt b/requirements.txt
index cb87098..f43e8b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ appdirs==1.4.4
 autograd==1.5
 autoray==0.3.2
 cachetools==5.2.0
-certifi==2022.12.7
+certifi==2023.7.22
 charset-normalizer==2.0.12
 future==0.18.2
 idna==3.3