diff --git a/requirements-dev.txt b/requirements-dev.txt
index 887e3c5..aa1dcf0 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -273,7 +273,7 @@ proto-plus==1.26.1
     #   google-api-core
     #   google-cloud-aiplatform
     #   google-cloud-resource-manager
-protobuf==6.33.0
+protobuf==6.33.4
     # via
     #   -c requirements.txt
     #   google-api-core
diff --git a/requirements.txt b/requirements.txt
index cc32e40..dbdfd4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -77,7 +77,7 @@ opentelemetry-util-http==0.59b0
     # via opentelemetry-instrumentation-httpx
 packaging==25.0
     # via opentelemetry-instrumentation
-protobuf==6.33.0
+protobuf==6.33.4
     # via
     #   googleapis-common-protos
     #   opentelemetry-proto