diff --git a/requirements-dev.txt b/requirements-dev.txt
index 636c698..0f2e259 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,4 +3,4 @@ pyspark==3.2.1
 pytest-mock==3.7.0
 pytest-cov==3.0.0
 IPython==8.1.1
-protobuf~=3.19.0
+protobuf~=4.21.6
diff --git a/requirements.txt b/requirements.txt
index e167ad3..6c5c501 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ cloudpickle==1.6.0
 delta-sharing==0.4.0
 mlflow==1.26.1
 black==22.3.0
-protobuf~=3.19.0
+protobuf~=4.21.6