diff --git a/Gemfile.lock b/Gemfile.lock
index 1379cf5..83ed930 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -3,28 +3,28 @@ PATH
   specs:
     enum-transitions (1.0.1)
       activerecord (~> 5.0)
-      activesupport (~> 5.0)
+      activesupport (>= 5, < 7)
 
 GEM
   remote: https://rubygems.org/
   specs:
-    activemodel (5.1.7)
-      activesupport (= 5.1.7)
-    activerecord (5.1.7)
-      activemodel (= 5.1.7)
-      activesupport (= 5.1.7)
-      arel (~> 8.0)
-    activesupport (5.1.7)
+    activemodel (5.2.4.3)
+      activesupport (= 5.2.4.3)
+    activerecord (5.2.4.3)
+      activemodel (= 5.2.4.3)
+      activesupport (= 5.2.4.3)
+      arel (>= 9.0)
+    activesupport (5.2.4.3)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    arel (8.0.0)
+    arel (9.0.0)
     concurrent-ruby (1.1.6)
     diff-lcs (1.3)
-    i18n (1.6.0)
+    i18n (1.8.2)
       concurrent-ruby (~> 1.0)
-    minitest (5.14.0)
+    minitest (5.14.1)
     rake (12.3.3)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
@@ -40,7 +40,7 @@ GEM
       rspec-support (~> 3.9.0)
     rspec-support (3.9.2)
     thread_safe (0.3.6)
-    tzinfo (1.2.6)
+    tzinfo (1.2.7)
       thread_safe (~> 0.1)
 
 PLATFORMS
diff --git a/enum-transitions.gemspec b/enum-transitions.gemspec
index 1bc3dc8..0aad019 100644
--- a/enum-transitions.gemspec
+++ b/enum-transitions.gemspec
@@ -29,5 +29,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency 'rspec', '~> 3.0'
 
   spec.add_runtime_dependency 'activerecord', '~> 5.0'
-  spec.add_runtime_dependency 'activesupport', '~> 5.0'
+  spec.add_runtime_dependency 'activesupport', '>= 5', '< 7'
 end