diff --git a/Gemfile.lock b/Gemfile.lock
index 80b6a60..d85e31a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,22 +1,22 @@
 PATH
   remote: .
   specs:
-    full_moon (0.1.0)
-      activesupport (~> 5.1.4)
+    full-moon (0.1.0)
+      activesupport (>= 5.1.4, < 7.1.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.1.4)
+    activesupport (7.0.4.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-    concurrent-ruby (1.0.5)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+    concurrent-ruby (1.1.10)
     diff-lcs (1.3)
-    i18n (0.9.1)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
-    minitest (5.10.3)
+    minitest (5.17.0)
     rake (10.5.0)
     rspec (3.7.0)
       rspec-core (~> 3.7.0)
@@ -31,17 +31,16 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.7.0)
     rspec-support (3.7.0)
-    thread_safe (0.3.6)
     timecop (0.8.1)
-    tzinfo (1.2.4)
-      thread_safe (~> 0.1)
+    tzinfo (2.0.5)
+      concurrent-ruby (~> 1.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   bundler (~> 1.16.a)
-  full_moon!
+  full-moon!
   rake (~> 10.0)
   rspec (~> 3.2)
   timecop (= 0.8.1)
diff --git a/full_moon.gemspec b/full_moon.gemspec
index a582c84..375ce97 100644
--- a/full_moon.gemspec
+++ b/full_moon.gemspec
@@ -33,6 +33,6 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "bundler", "~> 1.16.a"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.2"
-  spec.add_runtime_dependency 'activesupport', '~> 5.1.4'
+  spec.add_runtime_dependency 'activesupport', '>= 5.1.4', '< 7.1.0'
   spec.add_development_dependency 'timecop', '0.8.1'
 end