diff --git a/pkgs/by-name/bu/buf/package.nix b/pkgs/by-name/bu/buf/package.nix
index 3ef29d223170..eb93cae6c90d 100644
--- a/pkgs/by-name/bu/buf/package.nix
+++ b/pkgs/by-name/bu/buf/package.nix
@@ -2,7 +2,7 @@
   lib,
   buildGoModule,
   fetchFromGitHub,
-  protobuf_26,
+  protobuf,
   git,
   testers,
   buf,
@@ -11,16 +11,16 @@
 
 buildGoModule rec {
   pname = "buf";
-  version = "1.52.1";
+  version = "1.55.1";
 
   src = fetchFromGitHub {
     owner = "bufbuild";
     repo = "buf";
     rev = "v${version}";
-    hash = "sha256-oHmTOQBvuJWQdmC/LL72r+n2uwaQC8z3/1BRM0NzMbI=";
+    hash = "sha256-41IY2P2s9kCV6aQh5vg7xVmu4Ovl9gakGmgcI/QSwfw=";
   };
 
-  vendorHash = "sha256-+zJ2pCLyXnqFOIWWfnhAzSnUOjQSDo4AqCxBNNZED7E=";
+  vendorHash = "sha256-2kg7VXIFKXXY1uDUSV3+4vo6GYwnxyvJIZ/a8j99lhk=";
 
   patches = [
     # Skip a test that requires networking to be available to work.
@@ -36,7 +36,7 @@ buildGoModule rec {
 
   nativeCheckInputs = [
     git # Required for TestGitCloner
-    protobuf_26 # Required for buftesting.GetProtocFilePaths
+    protobuf # Required for buftesting.GetProtocFilePaths
   ];
 
   checkFlags = [
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 165a1309d0d7..d83ddc23d9e2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -340,10 +340,6 @@ with pkgs;
     ];
   } ../build-support/setup-hooks/gog-unpack.sh;
 
-  buf = callPackage ../by-name/bu/buf/package.nix {
-    buildGoModule = buildGo123Module;
-  };
-
   buildEnv = callPackage ../build-support/buildenv { }; # not actually a package
 
   buildFHSEnv = buildFHSEnvBubblewrap;