diff --git a/pkgs/development/libraries/protobuf/25.nix b/pkgs/development/libraries/protobuf/25.nix
index d5569ec3ce203..908252beab261 100644
--- a/pkgs/development/libraries/protobuf/25.nix
+++ b/pkgs/development/libraries/protobuf/25.nix
@@ -2,8 +2,8 @@
 
 callPackage ./generic.nix (
   {
-    version = "25.5";
-    hash = "sha256-DFLlk4T8ODo3lmvrANlkIsrmDXZHmqMPTYxDWaz56qA=";
+    version = "25.6";
+    hash = "sha256-pXZGffQXjAUXworfcr75BrkADamC9pKZXNK0l/Bvk9g=";
   }
   // args
 )