diff --git a/pkgs/tools/system/colorls/Gemfile.lock b/pkgs/tools/system/colorls/Gemfile.lock
index d138a167ce74..e9cd8cbf766d 100644
--- a/pkgs/tools/system/colorls/Gemfile.lock
+++ b/pkgs/tools/system/colorls/Gemfile.lock
@@ -2,14 +2,16 @@ GEM
   remote: https://rubygems.org/
   specs:
     clocale (0.0.4)
-    colorls (1.4.2)
+    colorls (1.4.3)
       clocale (~> 0)
       filesize (~> 0)
       manpages (~> 0)
       rainbow (>= 2.2, < 4.0)
+      unicode-display_width (~> 1.7)
     filesize (0.2.0)
     manpages (0.6.1)
     rainbow (3.0.0)
+    unicode-display_width (1.7.0)
 
 PLATFORMS
   ruby
diff --git a/pkgs/tools/system/colorls/gemset.nix b/pkgs/tools/system/colorls/gemset.nix
index 2e4a26ff9182..850aae35684b 100644
--- a/pkgs/tools/system/colorls/gemset.nix
+++ b/pkgs/tools/system/colorls/gemset.nix
@@ -10,15 +10,15 @@
     version = "0.0.4";
   };
   colorls = {
-    dependencies = ["clocale" "filesize" "manpages" "rainbow"];
+    dependencies = ["clocale" "filesize" "manpages" "rainbow" "unicode-display_width"];
     groups = ["default"];
     platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0sw377wklld5zn1la0smxc2bg4rph2xf9d0h3zmxhmds06lb92db";
+      sha256 = "1w9d99qzgxw8wwa4z1vkdnr70fppx2g9shma6dz3ihjhajj2xvmq";
       type = "gem";
     };
-    version = "1.4.2";
+    version = "1.4.3";
   };
   filesize = {
     groups = ["default"];
@@ -50,4 +50,14 @@
     };
     version = "3.0.0";
   };
+  unicode-display_width = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "06i3id27s60141x6fdnjn5rar1cywdwy64ilc59cz937303q3mna";
+      type = "gem";
+    };
+    version = "1.7.0";
+  };
 }
\ No newline at end of file