diff --git a/managedkafka/snippets/connect/clusters/requirements.txt b/managedkafka/snippets/connect/clusters/requirements.txt
index 5f372e81c41..b992db0245a 100644
--- a/managedkafka/snippets/connect/clusters/requirements.txt
+++ b/managedkafka/snippets/connect/clusters/requirements.txt
@@ -1,4 +1,4 @@
-protobuf==5.29.4
+protobuf==5.29.5
 pytest==8.2.2
 google-api-core==2.23.0
 google-auth==2.38.0
diff --git a/managedkafka/snippets/requirements.txt b/managedkafka/snippets/requirements.txt
index 5f372e81c41..b992db0245a 100644
--- a/managedkafka/snippets/requirements.txt
+++ b/managedkafka/snippets/requirements.txt
@@ -1,4 +1,4 @@
-protobuf==5.29.4
+protobuf==5.29.5
 pytest==8.2.2
 google-api-core==2.23.0
 google-auth==2.38.0
diff --git a/secretmanager/snippets/requirements.txt b/secretmanager/snippets/requirements.txt
index 1e166fd6814..1afb7ed4aef 100644
--- a/secretmanager/snippets/requirements.txt
+++ b/secretmanager/snippets/requirements.txt
@@ -1,4 +1,4 @@
 google-cloud-resource-manager==1.14.2
 google-cloud-secret-manager==2.24.0
 google-crc32c==1.6.0
-protobuf==5.29.4
+protobuf==5.29.5