diff --git a/pkgs/tools/misc/lolcat/Gemfile.lock b/pkgs/tools/misc/lolcat/Gemfile.lock
index d98402b0a599..91943e5958cd 100644
--- a/pkgs/tools/misc/lolcat/Gemfile.lock
+++ b/pkgs/tools/misc/lolcat/Gemfile.lock
@@ -3,11 +3,11 @@ GEM
   specs:
     lolcat (100.0.1)
       manpages (~> 0.6.1)
-      optimist (~> 3.0.1)
-      paint (~> 2.2.0)
+      optimist (~> 3.0.0)
+      paint (~> 2.1)
     manpages (0.6.1)
     optimist (3.0.1)
-    paint (2.2.0)
+    paint (2.3.0)
 
 PLATFORMS
   ruby
@@ -16,4 +16,4 @@ DEPENDENCIES
   lolcat
 
 BUNDLED WITH
-   2.1.4
+   2.5.22
diff --git a/pkgs/tools/misc/lolcat/gemset.nix b/pkgs/tools/misc/lolcat/gemset.nix
index 665d255b820b..3c54e0834cdf 100644
--- a/pkgs/tools/misc/lolcat/gemset.nix
+++ b/pkgs/tools/misc/lolcat/gemset.nix
@@ -39,9 +39,9 @@
     platforms = [ ];
     source = {
       remotes = [ "https://rubygems.org" ];
-      sha256 = "014b5rkbg6qri0cwkq972bfi93zvqdgswgvphjrgjl0pr6hywlkl";
+      sha256 = "1r9vx3wcx0x2xqlh6zqc81wcsn9qjw3xprcsv5drsq9q80z64z9j";
       type = "gem";
     };
-    version = "2.2.0";
+    version = "2.3.0";
   };
 }