diff --git a/docs/requirements.txt b/docs/requirements.txt
index d077eac..d583d96 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 sphinx_rtd_theme
-certifi==2018.4.16
+certifi==2022.12.7
 chardet==3.0.4
 future==0.16.0
 idna==2.7
diff --git a/requirements.txt b/requirements.txt
index 977120e..408b832 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2018.4.16
+certifi==2022.12.7
 chardet==3.0.4
 future==0.16.0
 idna==2.7