diff --git a/python/pyproject.toml b/python/pyproject.toml
index 2a344ab..65387dd 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -8,7 +8,7 @@ classifiers = [
 ]
 dependencies = [
     "grpcio>=1.62.1",
-    "protobuf>=4.22.0"
+    "protobuf==4.24.2"
 ]
 
 [project.urls]
@@ -19,7 +19,7 @@ dev = [
     "pyright==1.1.298",
     "types-psutil==5.9.5.16",
     "types-setuptools==68.1.0.1",
-    "types-protobuf>=4.24.0.1"
+    "types-protobuf==4.24.0.1"
 ]
 
 [tool.flit.module]