diff --git a/spec/functions/os_version_gte_spec.rb b/spec/functions/os_version_gte_spec.rb
index 5de5838..aec4982 100644
--- a/spec/functions/os_version_gte_spec.rb
+++ b/spec/functions/os_version_gte_spec.rb
@@ -1,47 +1,50 @@
 # frozen_string_literal: true
 
 require 'spec_helper'
 
 describe 'os_version_gte' do
   context 'on Debian 9' do
     let(:facts) do
       {
         operatingsystem: 'Debian',
         operatingsystemmajrelease: '9',
       }
     end
 
+    it { is_expected.to run.with_params('Debian', '10').and_return(false) }
     it { is_expected.to run.with_params('Debian', '9').and_return(true) }
-    it { is_expected.to run.with_params('Debian', '8').and_return(false) }
-    it { is_expected.to run.with_params('Debian', '8.0').and_return(false) }
+    it { is_expected.to run.with_params('Debian', '8').and_return(true) }
+    it { is_expected.to run.with_params('Debian', '8.0').and_return(true) }
     it { is_expected.to run.with_params('Ubuntu', '16.04').and_return(false) }
     it { is_expected.to run.with_params('Fedora', '29').and_return(false) }
   end
 
   context 'on Ubuntu 16.04' do
     let(:facts) do
       {
         operatingsystem: 'Ubuntu',
         operatingsystemmajrelease: '16.04',
       }
     end
 
     it { is_expected.to run.with_params('Debian', '9').and_return(false) }
-    it { is_expected.to run.with_params('Ubuntu', '16').and_return(false) }
+    it { is_expected.to run.with_params('Ubuntu', '16').and_return(true) }
+    it { is_expected.to run.with_params('Ubuntu', '14.04').and_return(true) }
     it { is_expected.to run.with_params('Ubuntu', '16.04').and_return(true) }
-    it { is_expected.to run.with_params('Ubuntu', '18.04').and_return(true) }
+    it { is_expected.to run.with_params('Ubuntu', '18.04').and_return(false) }
+    it { is_expected.to run.with_params('Ubuntu', '20.04').and_return(false) }
     it { is_expected.to run.with_params('Fedora', '29').and_return(false) }
   end
 
   context 'with invalid params' do
     let(:facts) do
       {
         operatingsystem: 'Ubuntu',
         operatingsystemmajrelease: '16.04',
       }
     end
 
     it { is_expected.to run.with_params('123', 'abc').and_return(false) }
     it { is_expected.to run.with_params([], 123).and_raise_error(ArgumentError) }
   end
 end