diff --git a/webhook/requirements-dev.txt b/webhook/requirements-dev.txt
index 40c7047..865fc03 100644
--- a/webhook/requirements-dev.txt
+++ b/webhook/requirements-dev.txt
@@ -5,7 +5,7 @@ cachetools==4.1.1
 certifi==2020.6.20
 chardet==3.0.4
 click==7.1.2
-cryptography==3.0
+cryptography==42.0.0
 dnspython==1.16.0
 fastapi==0.59.0
 filelock==3.0.12
diff --git a/webhook/requirements.txt b/webhook/requirements.txt
index cb1ae4c..1138b48 100644
--- a/webhook/requirements.txt
+++ b/webhook/requirements.txt
@@ -1,5 +1,5 @@
 click==7.1.2
-cryptography==3.0
+cryptography==42.0.0
 fastapi==0.59.0
 google-cloud-logging==1.15.0
 google-cloud-ndb==1.4.1