diff --git a/requirements-test.txt b/requirements-test.txt
index 265f763..1fce769 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -9,7 +9,7 @@ colorama==0.4.6 ; python_version >= "3.11" and python_version < "4.0" and (sys_p
 coverage[toml]==7.6.1 ; python_version >= "3.11" and python_version < "4.0"
 grpcio-tools==1.66.1 ; python_version >= "3.11" and python_version < "4.0"
 grpcio==1.66.1 ; python_version >= "3.11" and python_version < "4.0"
-grpclib==0.4.7 ; python_version >= "3.11" and python_version < "4.0"
+grpclib==0.4.9 ; python_version >= "3.11" and python_version < "4.0"
 h11==0.14.0 ; python_version >= "3.11" and python_version < "4.0"
 h2==4.1.0 ; python_version >= "3.11" and python_version < "4.0"
 hpack==4.0.0 ; python_version >= "3.11" and python_version < "4.0"
diff --git a/requirements.txt b/requirements.txt
index f253841..a02eec1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ aiofiles==24.1.0 ; python_version >= "3.11" and python_version < "4.0"
 asyncio==3.4.3 ; python_version >= "3.11" and python_version < "4.0"
 grpcio-tools==1.66.1 ; python_version >= "3.11" and python_version < "4.0"
 grpcio==1.66.1 ; python_version >= "3.11" and python_version < "4.0"
-grpclib==0.4.7 ; python_version >= "3.11" and python_version < "4.0"
+grpclib==0.4.9 ; python_version >= "3.11" and python_version < "4.0"
 h2==4.1.0 ; python_version >= "3.11" and python_version < "4.0"
 hpack==4.0.0 ; python_version >= "3.11" and python_version < "4.0"
 hyperframe==6.0.1 ; python_version >= "3.11" and python_version < "4.0"