diff --git a/pkgs/tools/system/hiera-eyaml/Gemfile b/pkgs/tools/system/hiera-eyaml/Gemfile
index 18c7cde2a08..2c2e8f27e40 100644
--- a/pkgs/tools/system/hiera-eyaml/Gemfile
+++ b/pkgs/tools/system/hiera-eyaml/Gemfile
@@ -1,3 +1,3 @@
 source 'https://rubygems.org'
 
-gem 'hiera-eyaml', '2.1.0'
+gem 'hiera-eyaml'
diff --git a/pkgs/tools/system/hiera-eyaml/Gemfile.lock b/pkgs/tools/system/hiera-eyaml/Gemfile.lock
index a6d1c1f872e..259c2e170b0 100644
--- a/pkgs/tools/system/hiera-eyaml/Gemfile.lock
+++ b/pkgs/tools/system/hiera-eyaml/Gemfile.lock
@@ -1,17 +1,17 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    hiera-eyaml (2.1.0)
+    hiera-eyaml (3.0.0)
       highline (~> 1.6.19)
-      trollop (~> 2.0)
+      optimist
     highline (1.6.21)
-    trollop (2.1.2)
+    optimist (3.0.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  hiera-eyaml (= 2.1.0)
+  hiera-eyaml
 
 BUNDLED WITH
-   1.11.2
+   1.17.2
diff --git a/pkgs/tools/system/hiera-eyaml/gemset.nix b/pkgs/tools/system/hiera-eyaml/gemset.nix
index ab6d5307ebb..d5aa722e5fc 100644
--- a/pkgs/tools/system/hiera-eyaml/gemset.nix
+++ b/pkgs/tools/system/hiera-eyaml/gemset.nix
@@ -1,11 +1,14 @@
 {
   hiera-eyaml = {
+    dependencies = ["highline" "optimist"];
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "1h25pfv89macjf3sjdrx7slhlq1af4zybai42ci3gj02b6hli4a6";
+      sha256 = "049rxnwyivqgyjl0sjg7cb2q44ic0wsml288caspd1ps8v31gl18";
       type = "gem";
     };
-    version = "2.1.0";
+    version = "3.0.0";
   };
   highline = {
     source = {
@@ -15,12 +18,14 @@
     };
     version = "1.6.21";
   };
-  trollop = {
+  optimist = {
+    groups = ["default"];
+    platforms = [];
     source = {
       remotes = ["https://rubygems.org"];
-      sha256 = "0415y63df86sqj43c0l82and65ia5h64if7n0znkbrmi6y0jwhl8";
+      sha256 = "05jxrp3nbn5iilc1k7ir90mfnwc5abc9h78s5rpm3qafwqxvcj4j";
       type = "gem";
     };
-    version = "2.1.2";
+    version = "3.0.0";
   };
 }
\ No newline at end of file