diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5084c620..c84ea0f5 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -163,7 +163,7 @@ pluggy==1.6.0
     # via pytest
 pre-commit==4.6.0
     # via -r requirements-dev.in
-proto-plus==1.28.0
+proto-plus==1.28.4
     # via
     #   -r requirements.txt
     #   google-api-core
diff --git a/requirements-llm.txt b/requirements-llm.txt
index 4192e61a..0efee5da 100644
--- a/requirements-llm.txt
+++ b/requirements-llm.txt
@@ -415,7 +415,7 @@ propcache==0.4.1
     # via
     #   aiohttp
     #   yarl
-proto-plus==1.28.0
+proto-plus==1.28.4
     # via
     #   -r requirements.txt
     #   google-api-core
diff --git a/requirements.txt b/requirements.txt
index f85bc324..fd0d2489 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -75,7 +75,7 @@ mdurl==0.1.2
     # via markdown-it-py
 pendulum==3.2.0
     # via cel-python
-proto-plus==1.28.0
+proto-plus==1.28.4
     # via google-api-core
 protobuf==6.33.6
     # via