diff --git a/pkgs/development/libraries/sentencepiece/default.nix b/pkgs/development/libraries/sentencepiece/default.nix
index e918a3b3d1d..7aeb77a1ece 100644
--- a/pkgs/development/libraries/sentencepiece/default.nix
+++ b/pkgs/development/libraries/sentencepiece/default.nix
@@ -9,16 +9,18 @@
 
 stdenv.mkDerivation rec {
   pname = "sentencepiece";
-  version = "0.1.94";
+  version = "0.1.95";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256:11cqw4hx33gw2jmrg11jyp7fj9pwzwjwzqcn24jfsbgh6n8gks5x";
+    hash = "sha256-xpVihdSpjO/mJWM5nzVg9CND3oAEdfCwXQW0jqLVDBA=";
   };
 
-  nativeBuildInputs = [ cmake ] ++ lib.optional withGPerfTools gperftools;
+  nativeBuildInputs = [ cmake ];
+
+  buildInputs = lib.optionals withGPerfTools [ gperftools ];
 
   outputs = [ "bin" "dev" "out" ];