diff --git a/pkgs/development/tools/misc/mdl/Gemfile.lock b/pkgs/development/tools/misc/mdl/Gemfile.lock
index 04268d3306c..0e5b7b01672 100644
--- a/pkgs/development/tools/misc/mdl/Gemfile.lock
+++ b/pkgs/development/tools/misc/mdl/Gemfile.lock
@@ -1,15 +1,24 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    kramdown (1.17.0)
-    mdl (0.5.0)
-      kramdown (~> 1.12, >= 1.12.0)
-      mixlib-cli (~> 1.7, >= 1.7.0)
-      mixlib-config (~> 2.2, >= 2.2.1)
-    mixlib-cli (1.7.0)
-    mixlib-config (2.2.18)
+    chef-utils (16.7.61)
+    kramdown (2.3.0)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
+    mdl (0.11.0)
+      kramdown (~> 2.3)
+      kramdown-parser-gfm (~> 1.1)
+      mixlib-cli (~> 2.1, >= 2.1.1)
+      mixlib-config (>= 2.2.1, < 4)
+      mixlib-shellout
+    mixlib-cli (2.1.8)
+    mixlib-config (3.0.9)
       tomlrb
-    tomlrb (1.2.8)
+    mixlib-shellout (3.2.2)
+      chef-utils
+    rexml (3.2.4)
+    tomlrb (2.0.0)
 
 PLATFORMS
   ruby
diff --git a/pkgs/development/tools/misc/mdl/gemset.nix b/pkgs/development/tools/misc/mdl/gemset.nix
index 6d48be1cbcb..f2d332a95bb 100644
--- a/pkgs/development/tools/misc/mdl/gemset.nix
+++ b/pkgs/development/tools/misc/mdl/gemset.nix
@@ -1,34 +1,56 @@
 {
-  kramdown = {
+  chef-utils = {
     groups = ["default"];
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "1n1c4jmrh5ig8iv1rw81s4mw4xsp4v97hvf8zkigv4hn5h542qjq";
+      sha256 = "14xd2md3cda42afl28hr5q4ng195zmqfn04w2bxr4s2fb0gglbrz";
       type = "gem";
     };
-    version = "1.17.0";
+    version = "16.7.61";
+  };
+  kramdown = {
+    dependencies = ["rexml"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1vmw752c26ny2jwl0npn0gbyqwgz4hdmlpxnsld9qi9xhk5b1qh7";
+      type = "gem";
+    };
+    version = "2.3.0";
+  };
+  kramdown-parser-gfm = {
+    dependencies = ["kramdown"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0a8pb3v951f4x7h968rqfsa19c8arz21zw1vaj42jza22rap8fgv";
+      type = "gem";
+    };
+    version = "1.1.0";
   };
   mdl = {
-    dependencies = ["kramdown" "mixlib-cli" "mixlib-config"];
+    dependencies = ["kramdown" "kramdown-parser-gfm" "mixlib-cli" "mixlib-config" "mixlib-shellout"];
     groups = ["default"];
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "047hp8z1ma630wp38bm1giklkf385rp6wly8aidn825q831w2g4i";
+      sha256 = "0vgzq6v2scd8n4cmx8rrypqmchnhg4wccrhiakg2i8fzv7wxplqq";
       type = "gem";
     };
-    version = "0.5.0";
+    version = "0.11.0";
   };
   mixlib-cli = {
     groups = ["default"];
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0647msh7kp7lzyf6m72g6snpirvhimjm22qb8xgv9pdhbcrmcccp";
+      sha256 = "1ydxlfgd7nnj3rp1y70k4yk96xz5cywldjii2zbnw3sq9pippwp6";
       type = "gem";
     };
-    version = "1.7.0";
+    version = "2.1.8";
   };
   mixlib-config = {
     dependencies = ["tomlrb"];
@@ -36,19 +58,40 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "1gm6yj9cbbgsl9x4xqxga0vz5w0ksq2jnq1wj8hvgm5c4wfcrswb";
+      sha256 = "1askip583sfnz25gywd508l3vj5wnvx9vp7gm1sfnixm7amssrwq";
       type = "gem";
     };
-    version = "2.2.18";
+    version = "3.0.9";
+  };
+  mixlib-shellout = {
+    dependencies = ["chef-utils"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0y1z0phkdhpbsn8vz7a86nhkr7ra619j86z5p75amz61kfpw42z9";
+      type = "gem";
+    };
+    version = "3.2.2";
+  };
+  rexml = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1mkvkcw9fhpaizrhca0pdgjcrbns48rlz4g6lavl5gjjq3rk2sq3";
+      type = "gem";
+    };
+    version = "3.2.4";
   };
   tomlrb = {
     groups = ["default"];
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0g28ssfal6vry3cmhy509ba3vi5d5aggz1gnffnvvmc8ml8vkpiv";
+      sha256 = "0ssyvjcvaisv70f21arlmnw5a1ryzmxzz4538vdwfslz9xxl27sr";
       type = "gem";
     };
-    version = "1.2.8";
+    version = "2.0.0";
   };
 }
\ No newline at end of file