diff --git a/pkgs/applications/misc/gollum/Gemfile.lock b/pkgs/applications/misc/gollum/Gemfile.lock
index e6c66cba1e061d..4490ff60a5b930 100644
--- a/pkgs/applications/misc/gollum/Gemfile.lock
+++ b/pkgs/applications/misc/gollum/Gemfile.lock
@@ -29,15 +29,15 @@ GEM
       sanitize (~> 2.1.1, >= 2.1.1)
       stringex (~> 2.6)
       twitter-text (= 1.14.7)
-    json (2.1.0)
+    json (2.2.0)
     kramdown (1.9.0)
     mime-types (3.2.2)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2018.0812)
-    mini_portile2 (2.3.0)
+    mime-types-data (3.2019.0331)
+    mini_portile2 (2.4.0)
     mustache (0.99.8)
-    nokogiri (1.8.4)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.10.2)
+      mini_portile2 (~> 2.4.0)
     posix-spawn (0.3.13)
     rack (1.6.11)
     rack-protection (1.5.5)
@@ -49,8 +49,8 @@ GEM
       rack (~> 1.5)
       rack-protection (~> 1.4)
       tilt (>= 1.3, < 3)
-    stringex (2.8.4)
-    tilt (2.0.8)
+    stringex (2.8.5)
+    tilt (2.0.9)
     twitter-text (1.14.7)
       unf (~> 0.1.0)
     unf (0.1.4)
@@ -65,4 +65,4 @@ DEPENDENCIES
   gollum
 
 BUNDLED WITH
-   1.16.4
+   1.17.2
diff --git a/pkgs/applications/misc/gollum/gemset.nix b/pkgs/applications/misc/gollum/gemset.nix
index bb105805ca8e86..bef80a95bbb5a4 100644
--- a/pkgs/applications/misc/gollum/gemset.nix
+++ b/pkgs/applications/misc/gollum/gemset.nix
@@ -1,5 +1,7 @@
 {
   charlock_holmes = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1nf1l31n10yaark2rrg5qzyzcx9w80681449s3j09qmnipsl8rl5";
@@ -8,6 +10,8 @@
     version = "0.7.6";
   };
   diff-lcs = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "18w22bjz424gzafv6nzv98h0aqkwz3d9xhm7cbr1wfbyas8zayza";
@@ -17,6 +21,8 @@
   };
   gemojione = {
     dependencies = ["json"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0ayk8r147k1s38nj18pwk76npx1p7jhi86silk800nj913pjvrhj";
@@ -25,6 +31,8 @@
     version = "3.3.0";
   };
   github-markup = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "17g6g18gdjg63k75sfwiskjzl9i0hfcnrkcpb4fwrnb20v3jgswp";
@@ -34,6 +42,8 @@
   };
   gitlab-grit = {
     dependencies = ["charlock_holmes" "diff-lcs" "mime-types" "posix-spawn"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0xgs3l81ghlc5nm75n0pz7b2cj3hpscfq5iy27c483nnjn2v5mc4";
@@ -43,6 +53,8 @@
   };
   gollum = {
     dependencies = ["gemojione" "gollum-lib" "kramdown" "mustache" "sinatra" "useragent"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0ik1b0f73lcxfwfml1h84dp6br79g0z9v6x54wvl46n9d1ndrhl7";
@@ -52,6 +64,8 @@
   };
   gollum-grit_adapter = {
     dependencies = ["gitlab-grit"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0fcibm63v1afc0fj5rki0mm51m7nndil4cjcjjvkh3yigfn4nr4b";
@@ -61,6 +75,8 @@
   };
   gollum-lib = {
     dependencies = ["gemojione" "github-markup" "gollum-grit_adapter" "nokogiri" "rouge" "sanitize" "stringex" "twitter-text"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1699wiir6f2a8yawk3qg0xn3zdc10mz783v53ri1ivfnzdrm3dvf";
@@ -69,14 +85,18 @@
     version = "4.2.10";
   };
   json = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "01v6jjpvh3gnq6sgllpfqahlgxzj50ailwhj9b3cd20hi2dx0vxp";
+      sha256 = "0sx97bm9by389rbzv8r1f43h06xcz8vwi3h5jv074gvparql7lcx";
       type = "gem";
     };
-    version = "2.1.0";
+    version = "2.2.0";
   };
   kramdown = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "12sral2xli39mnr4b9m2sxdlgam4ni0a1mkxawc5311z107zj3p0";
@@ -86,6 +106,8 @@
   };
   mime-types = {
     dependencies = ["mime-types-data"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0fjxy1jm52ixpnv3vg9ld9pr9f35gy0jp66i1njhqjvmnvq0iwwk";
@@ -94,22 +116,28 @@
     version = "3.2.2";
   };
   mime-types-data = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "07wvp0aw2gjm4njibb70as6rh5hi1zzri5vky1q6jx95h8l56idc";
+      sha256 = "1m00pg19cm47n1qlcxgl91ajh2yq0fszvn1vy8fy0s1jkrp9fw4a";
       type = "gem";
     };
-    version = "3.2018.0812";
+    version = "3.2019.0331";
   };
   mini_portile2 = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "13d32jjadpjj6d2wdhkfpsmy68zjx90p49bgf8f7nkpz86r1fr11";
+      sha256 = "15zplpfw3knqifj9bpf604rb3wc1vhq6363pd6lvhayng8wql5vy";
       type = "gem";
     };
-    version = "2.3.0";
+    version = "2.4.0";
   };
   mustache = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1g5hplm0k06vwxwqzwn1mq5bd02yp0h3rym4zwzw26aqi7drcsl2";
@@ -119,14 +147,18 @@
   };
   nokogiri = {
     dependencies = ["mini_portile2"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "1h9nml9h3m0mpvmh8jfnqvblnz5n5y3mmhgfc38avfmfzdrq9bgc";
+      sha256 = "0sy96cc8i5y4p67fhf4d9c6sg8ymrrva21zyvzw55l0pa1582wx2";
       type = "gem";
     };
-    version = "1.8.4";
+    version = "1.10.2";
   };
   posix-spawn = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1pmxmpins57qrbr31bs3bm7gidhaacmrp4md6i962gvpq4gyfcjw";
@@ -135,6 +167,8 @@
     version = "0.3.13";
   };
   rack = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1g9926ln2lw12lfxm4ylq1h6nl0rafl10za3xvjzc87qvnqic87f";
@@ -144,6 +178,8 @@
   };
   rack-protection = {
     dependencies = ["rack"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0my0wlw4a5l3hs79jkx2xzv7djhajgf8d28k8ai1ddlnxxb0v7ss";
@@ -152,6 +188,8 @@
     version = "1.5.5";
   };
   rouge = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "02kpahk5nkc33yxnn75649kzxaz073wvazr2zyg491nndykgnvcs";
@@ -161,6 +199,8 @@
   };
   sanitize = {
     dependencies = ["nokogiri"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "12ip1d80r0dgc621qn7c32bk12xxgkkg3w6q21s1ckxivcd7r898";
@@ -170,6 +210,8 @@
   };
   sinatra = {
     dependencies = ["rack" "rack-protection" "tilt"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0byxzl7rx3ki0xd7aiv1x8mbah7hzd8f81l65nq8857kmgzj1jqq";
@@ -178,23 +220,29 @@
     version = "1.4.8";
   };
   stringex = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0c5dfrjzkskzfsdvwsviq4111rwwpbk9022nxwdidz014mky5vi1";
+      sha256 = "15ns7j5smw04w6w7bqd5mm2qcl7w9lhwykyb974i4isgg9yc23ys";
       type = "gem";
     };
-    version = "2.8.4";
+    version = "2.8.5";
   };
   tilt = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0020mrgdf11q23hm1ddd6fv691l51vi10af00f137ilcdb2ycfra";
+      sha256 = "0ca4k0clwf0rkvy7726x4nxpjxkpv67w043i39saxgldxd97zmwz";
       type = "gem";
     };
-    version = "2.0.8";
+    version = "2.0.9";
   };
   twitter-text = {
     dependencies = ["unf"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1732h7hy1k152w8wfvjsx7b79alk45i5imwd37ia4qcx8hfm3gvg";
@@ -204,6 +252,8 @@
   };
   unf = {
     dependencies = ["unf_ext"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "0bh2cf73i2ffh4fcpdn9ir4mhq8zi50ik0zqa1braahzadx536a9";
@@ -212,6 +262,8 @@
     version = "0.1.4";
   };
   unf_ext = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "06p1i6qhy34bpb8q8ms88y6f2kz86azwm098yvcc0nyqk9y729j1";
@@ -220,6 +272,8 @@
     version = "0.0.7.5";
   };
   useragent = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
       sha256 = "1fv5kvq494swy0p17h9qya9r50w15xsi9zmvhzb8gh55kq6ki50p";