diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index c09959ee..9367da2b 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -1,5 +1,21 @@
 name: Verify
 
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#permissions
+permissions:
+  actions: none
+  checks: none
+  contents: none
+  deployments: none
+  id-token: none
+  issues: none
+  discussions: none
+  packages: none
+  pages: none
+  pull-requests: none
+  repository-projects: none
+  security-events: none
+  statuses: none
+
 on:
   push:
     branches:
@@ -10,7 +26,7 @@ on:
 
 jobs:
   test:
-    runs-on: ubuntu-18.04
+    runs-on: ${{ matrix.os }}
     timeout-minutes: 40
 
     services:
@@ -34,11 +50,18 @@ jobs:
           - 2.7
           - 3.0
           - 3.1
+        os:
+          - ubuntu-18.04
+          - ubuntu-22.04
+        exclude:
+          - { os: ubuntu-22.04, ruby: 2.6 }
+          - { os: ubuntu-22.04, ruby: 2.7 }
+          - { os: ubuntu-22.04, ruby: 3.0 }
 
     env:
       RAILS_ENV: test
 
-    name: Ruby ${{ matrix.ruby }}
+    name: ${{ matrix.os }} - Ruby ${{ matrix.ruby }}
     steps:
       - name: Install system dependencies
         run: sudo apt-get install libpcap-dev graphviz
diff --git a/metasploit_data_models.gemspec b/metasploit_data_models.gemspec
index 9e07ade6..7bada57d 100644
--- a/metasploit_data_models.gemspec
+++ b/metasploit_data_models.gemspec
@@ -41,7 +41,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency 'webrick'
 
   # os fingerprinting
-  s.add_runtime_dependency 'recog', '~> 2.0'
+  s.add_runtime_dependency 'recog'
 
   # arel-helpers: Useful tools to help construct database queries with ActiveRecord and Arel.
   s.add_runtime_dependency 'arel-helpers'
diff --git a/spec/app/models/mdm/host_spec.rb b/spec/app/models/mdm/host_spec.rb
index e3624fda..58216152 100644
--- a/spec/app/models/mdm/host_spec.rb
+++ b/spec/app/models/mdm/host_spec.rb
@@ -547,14 +547,14 @@ def search_for(str)
         it "when the string contains 'ppc'" do
           expect(host.send(:get_arch_from_string, 'blahppcblah')).to eq('PowerPC')
         end
-      end
 
-      context 'should return nil' do
         it 'when PowerPC is cased incorrectly' do
-          expect(host.send(:get_arch_from_string, 'powerPC')).to eq(nil)
-          expect(host.send(:get_arch_from_string, 'Powerpc')).to eq(nil)
+          expect(host.send(:get_arch_from_string, 'powerPC')).to eq('PowerPC')
+          expect(host.send(:get_arch_from_string, 'Powerpc')).to eq('PowerPC')
         end
+      end
 
+      context 'should return nil' do
         it 'when no recognized arch string is present' do
           expect(host.send(:get_arch_from_string, 'blahblah')).to eq(nil)
         end
diff --git a/spec/app/models/mdm/web_page_spec.rb b/spec/app/models/mdm/web_page_spec.rb
index 80471d76..f4b36080 100644
--- a/spec/app/models/mdm/web_page_spec.rb
+++ b/spec/app/models/mdm/web_page_spec.rb
@@ -1,3 +1,5 @@
+require 'webrick'
+
 RSpec.describe Mdm::WebPage, type: :model do
   it_should_behave_like 'Metasploit::Concern.run'
 
diff --git a/spec/app/models/metasploit_data_models/ip_address/v4/range_spec.rb b/spec/app/models/metasploit_data_models/ip_address/v4/range_spec.rb
index b85673e0..4f3a9cbc 100644
--- a/spec/app/models/metasploit_data_models/ip_address/v4/range_spec.rb
+++ b/spec/app/models/metasploit_data_models/ip_address/v4/range_spec.rb
@@ -185,7 +185,7 @@
   end
 
   context '#to_s' do
-    subject(:to_s) {
+    subject(:to_s_result) {
       range.to_s
     }
 
@@ -195,7 +195,7 @@
       }
 
       it 'equals the original formatted value' do
-        expect(to_s).to eq(formatted_value)
+        expect(to_s_result).to eq(formatted_value)
       end
     end
 
@@ -295,4 +295,4 @@
       it { is_expected.not_to be_a Range }
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/app/models/metasploit_data_models/ip_address/v4/segment/nmap/list_spec.rb b/spec/app/models/metasploit_data_models/ip_address/v4/segment/nmap/list_spec.rb
index 4d51547d..c0aaa41b 100644
--- a/spec/app/models/metasploit_data_models/ip_address/v4/segment/nmap/list_spec.rb
+++ b/spec/app/models/metasploit_data_models/ip_address/v4/segment/nmap/list_spec.rb
@@ -135,7 +135,7 @@
   end
 
   context '#to_s' do
-    subject(:to_s) do
+    subject(:to_s_value) do
       nmap.to_s
     end
 
@@ -145,7 +145,7 @@
       }
 
       it 'returns a string equal to the original formatted value' do
-        expect(to_s).to eq(formatted_value)
+        expect(to_s_value).to eq(formatted_value)
       end
     end
 
@@ -155,7 +155,7 @@
       }
 
       it 'returned the formatted value as a string' do
-        expect(to_s).to eq(formatted_value.to_s)
+        expect(to_s_value).to eq(formatted_value.to_s)
       end
     end
   end
@@ -273,4 +273,4 @@
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/app/models/metasploit_data_models/ip_address/v4/segment/nmap/range_spec.rb b/spec/app/models/metasploit_data_models/ip_address/v4/segment/nmap/range_spec.rb
index 371ab6c0..6c99fb8d 100644
--- a/spec/app/models/metasploit_data_models/ip_address/v4/segment/nmap/range_spec.rb
+++ b/spec/app/models/metasploit_data_models/ip_address/v4/segment/nmap/range_spec.rb
@@ -185,7 +185,7 @@
   end
 
   context '#to_s' do
-    subject(:to_s) {
+    subject(:to_s_result) {
       range.to_s
     }
 
@@ -195,7 +195,7 @@
       }
 
       it 'equals the original formatted value' do
-        expect(to_s).to eq(formatted_value)
+        expect(to_s_result).to eq(formatted_value)
       end
     end
 
@@ -299,4 +299,4 @@
       it { is_expected.not_to be_a Range }
     end
   end
-end
\ No newline at end of file
+end