diff --git a/demo-server/requirements.txt b/demo-server/requirements.txt
index 2aa34de..0ac74da 100644
--- a/demo-server/requirements.txt
+++ b/demo-server/requirements.txt
@@ -1,7 +1,7 @@
 AnyQt==0.0.10
 Bottleneck==1.3.1
 CacheControl==0.12.6
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 commonmark==0.9.1
 cycler==0.10.0
diff --git a/requirements.txt b/requirements.txt
index fa83d65..7031a53 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 AnyQt==0.0.10
 Bottleneck==1.3.1
 CacheControl==0.12.6
-certifi==2019.11.28
+certifi==2022.12.7
 chardet==3.0.4
 commonmark==0.9.1
 cycler==0.10.0