diff --git a/pkgs/by-name/md/mdctags/package.nix b/pkgs/by-name/md/mdctags/package.nix
index 390e2996cb78..ae7117a5febd 100644
--- a/pkgs/by-name/md/mdctags/package.nix
+++ b/pkgs/by-name/md/mdctags/package.nix
@@ -6,13 +6,16 @@
 
 rustPlatform.buildRustPackage {
   pname = "mdctags";
-  version = "unstable-2020-06-11"; # v0.1.0 does not build with our rust version
+  version = "0.1.0-unstable-2020-07-11"; # v0.1.0 does not build with our rust version
+
+  strictDeps = true;
+  __structuredAttrs = true;
 
   src = fetchFromGitHub {
     owner = "wsdjeg";
     repo = "mdctags.rs";
     rev = "0ed9736ea0c77e6ff5b560dda46f5ed0a983ed82";
-    sha256 = "14gryhgh9czlkfk75ml0620c6v8r74i6h3ykkkmc7gx2z8h1jxrb";
+    hash = "sha256-K3cZIPqiv8PqnNMPaCI5GW3DgDCA1nKmm/SzBB/0+ZE=";
   };
 
   cargoHash = "sha256-xg9tBBo3Al8x0HkgRnfdZybcjaHsNMv/Ot3NwGiHkBg=";