diff --git a/pkgs/applications/misc/gollum/Gemfile.lock b/pkgs/applications/misc/gollum/Gemfile.lock
index 6cd77318754c0f..b80d31cee9aedc 100644
--- a/pkgs/applications/misc/gollum/Gemfile.lock
+++ b/pkgs/applications/misc/gollum/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    charlock_holmes (0.7.6)
+    charlock_holmes (0.7.7)
     diff-lcs (1.3)
     gemojione (3.3.0)
       json
@@ -31,12 +31,12 @@ GEM
       twitter-text (= 1.14.7)
     json (2.2.0)
     kramdown (1.9.0)
-    mime-types (3.2.2)
+    mime-types (3.3)
       mime-types-data (~> 3.2015)
-    mime-types-data (3.2019.0331)
+    mime-types-data (3.2019.1009)
     mini_portile2 (2.4.0)
     mustache (0.99.8)
-    nokogiri (1.10.4)
+    nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
     posix-spawn (0.3.13)
     rack (1.6.11)
@@ -50,7 +50,7 @@ GEM
       rack-protection (~> 1.4)
       tilt (>= 1.3, < 3)
     stringex (2.8.5)
-    tilt (2.0.9)
+    tilt (2.0.10)
     twitter-text (1.14.7)
       unf (~> 0.1.0)
     unf (0.1.4)
@@ -65,4 +65,4 @@ DEPENDENCIES
   gollum
 
 BUNDLED WITH
-   1.17.2
+   1.17.3
diff --git a/pkgs/applications/misc/gollum/gemset.nix b/pkgs/applications/misc/gollum/gemset.nix
index f9bdf94db179e8..080c5b8b0987b8 100644
--- a/pkgs/applications/misc/gollum/gemset.nix
+++ b/pkgs/applications/misc/gollum/gemset.nix
@@ -4,10 +4,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "1nf1l31n10yaark2rrg5qzyzcx9w80681449s3j09qmnipsl8rl5";
+      sha256 = "0hybw8jw9ryvz5zrki3gc9r88jqy373m6v46ynxsdzv1ysiyr40p";
       type = "gem";
     };
-    version = "0.7.6";
+    version = "0.7.7";
   };
   diff-lcs = {
     groups = ["default"];
@@ -110,20 +110,20 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0fjxy1jm52ixpnv3vg9ld9pr9f35gy0jp66i1njhqjvmnvq0iwwk";
+      sha256 = "0g7l18igjb9z7q4b2ykvyxyvjxlx5pwsmx5z3ibdbr6372xgfglk";
       type = "gem";
     };
-    version = "3.2.2";
+    version = "3.3";
   };
   mime-types-data = {
     groups = ["default"];
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "1m00pg19cm47n1qlcxgl91ajh2yq0fszvn1vy8fy0s1jkrp9fw4a";
+      sha256 = "18x61fc36951vw7f74gq8cyybdpxvyg5d0azvqhrs82ddw3v16xh";
       type = "gem";
     };
-    version = "3.2019.0331";
+    version = "3.2019.1009";
   };
   mini_portile2 = {
     groups = ["default"];
@@ -151,10 +151,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0nmdrqqz1gs0fwkgzxjl4wr554gr8dc1fkrqjc2jpsvwgm41rygv";
+      sha256 = "185g3dwba73jqxjr94bd2zk6fil6n9hmcfnfyzh3p1w47vm296r7";
       type = "gem";
     };
-    version = "1.10.4";
+    version = "1.10.5";
   };
   posix-spawn = {
     groups = ["default"];
@@ -234,10 +234,10 @@
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0ca4k0clwf0rkvy7726x4nxpjxkpv67w043i39saxgldxd97zmwz";
+      sha256 = "0rn8z8hda4h41a64l0zhkiwz2vxw9b1nb70gl37h1dg2k874yrlv";
       type = "gem";
     };
-    version = "2.0.9";
+    version = "2.0.10";
   };
   twitter-text = {
     dependencies = ["unf"];