diff --git a/SmartApp.HAL/Bindings/requirements.txt b/SmartApp.HAL/Bindings/requirements.txt
index 91dc55d6..075abf28 100644
--- a/SmartApp.HAL/Bindings/requirements.txt
+++ b/SmartApp.HAL/Bindings/requirements.txt
@@ -1 +1 @@
-protobuf==3.5.2
+protobuf==3.15.0