diff --git a/requirements.txt b/requirements.txt
index 5ac8440..dccad03 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 privacyIDEA==3.9.3
 psycopg2==2.9.9
-grpcio==1.62.2
-grpcio-tools==1.62.2
+grpcio==1.64.0
+grpcio-tools==1.64.0
 gunicorn==22.0.0
 gssapi==1.8.3