diff --git a/source_code/CNN_DDPG_implementation/requirements.txt b/source_code/CNN_DDPG_implementation/requirements.txt
index 74eb8ff..5f2d93c 100644
--- a/source_code/CNN_DDPG_implementation/requirements.txt
+++ b/source_code/CNN_DDPG_implementation/requirements.txt
@@ -2,7 +2,7 @@ absl-py==0.7.1
 astor==0.7.1
 atari-py==0.1.7
 backcall==0.1.0
-certifi==2019.3.9
+certifi==2022.12.7
 chardet==3.0.4
 Click==7.0
 cloudpickle==0.8.1