diff --git a/project/BuildHelpers.scala b/project/BuildHelpers.scala
index 7d0732d..a3986ec 100644
--- a/project/BuildHelpers.scala
+++ b/project/BuildHelpers.scala
@@ -72,7 +72,7 @@ final case class ProtosProject(
   }
 
   def scalapb09: Project =
-    protoProject("0.9.8").dependsOn(
+    protoProject("0.10.9").dependsOn(
       dependencies.map(d => ClasspathDependency(d.scalapb09, None)): _*
     )