diff --git a/requirements.txt b/requirements.txt
index 719f920..28ed8bc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 google~=3.0.0
-protobuf~=5.29.5
+protobuf~=6.32.0
 grpcio~=1.73.1
 python-dotenv~=1.0.1
 Faker~=25.8.0
diff --git a/setup.py b/setup.py
index 3b2a601..3d7e864 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
     packages=find_packages(),
     install_requires=[
         "grpcio>=1.64.1",
-        "protobuf<6.0.0,>=5.26.1",
+        "protobuf>=5.26.1,<7.0.0",
         "google>=3.0",
         "requests>=2.32.3",
         "PyJWT>=2.8,<2.10",