diff --git a/pkgs/development/libraries/protobuf/3.9.nix b/pkgs/development/libraries/protobuf/3.9.nix
index 6652ba7648c5..a2f3e0e01646 100644
--- a/pkgs/development/libraries/protobuf/3.9.nix
+++ b/pkgs/development/libraries/protobuf/3.9.nix
@@ -1,6 +1,6 @@
 { callPackage, ... }:
 
 callPackage ./generic-v3.nix {
-  version = "3.9.0";
-  sha256 = "1xq2njqrbmizwg91ggi1lqr0n26cm2jdyk668ljc24ihrpk0z9bw";
+  version = "3.9.1";
+  sha256 = "0vv85xb65dx6fa76fsnyps13kaamvwfzd8hr6ii1payr73x4zy2h";
 }