diff --git a/01-dapr/requirements.txt b/01-dapr/requirements.txt
index 380c92f..41e09f5 100644
--- a/01-dapr/requirements.txt
+++ b/01-dapr/requirements.txt
@@ -1,7 +1,7 @@
 aiohttp==3.7.4.post0
 async-timeout==3.0.1
 attrs==20.3.0
-certifi==2020.12.5
+certifi==2022.12.7
 chardet==3.0.4
 dapr==1.1.0
 fire==0.4.0
diff --git a/2019/requirements.txt b/2019/requirements.txt
index 7bc9dd6..dfce646 100644
--- a/2019/requirements.txt
+++ b/2019/requirements.txt
@@ -3,7 +3,7 @@ asn1crypto==0.24.0
 astroid==2.2.5
 azure-common==1.1.18
 azure-servicebus==0.50.0
-certifi==2019.3.9
+certifi==2022.12.7
 cffi==1.12.2
 chardet==3.0.4
 Click==7.0