diff --git a/simulation/requirements.txt b/simulation/requirements.txt
index 3839fda..1cba3f3 100644
--- a/simulation/requirements.txt
+++ b/simulation/requirements.txt
@@ -1,4 +1,4 @@
-certifi==2023.5.7
+certifi==2023.7.22
 charset-normalizer==3.1.0
 contourpy==1.0.7
 cycler==0.11.0