diff --git a/pkgs/by-name/op/opentype-sanitizer/package.nix b/pkgs/by-name/op/opentype-sanitizer/package.nix
index fdd207cbef2e..afb658d7e757 100644
--- a/pkgs/by-name/op/opentype-sanitizer/package.nix
+++ b/pkgs/by-name/op/opentype-sanitizer/package.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-QRbF2GUDQsp8i6qVYlafSb9HaaozRuJ8dn1mhMMLeLc=";
   };
 
-  mesonFlags = [ "-Dcpp_std=c++14" ];
+  mesonFlags = [ "-Dcpp_std=c++17" ]; # required by gtest
 
   buildInputs = [
     freetype