diff --git a/exception_notification.gemspec b/exception_notification.gemspec
index 8c1bc8f7..e665414d 100644
--- a/exception_notification.gemspec
+++ b/exception_notification.gemspec
@@ -17,14 +17,14 @@ Gem::Specification.new do |s|
   s.require_path = 'lib'
 
   s.add_dependency("actionmailer", ">= 4.0", "< 6")
-  s.add_dependency("activesupport", ">= 4.0", "< 6")
+  s.add_dependency("activesupport", ">= 4.0", "< 8")
 
   s.add_development_dependency "rails", ">= 4.0", "< 6"
-  s.add_development_dependency "resque", "~> 1.2.0"
+  s.add_development_dependency "resque", "~> 2.6.0"
   # Sidekiq 3.2.2 does not support Ruby 1.9.
-  s.add_development_dependency "sidekiq", "~> 3.0.0", "< 3.2.2"
+  s.add_development_dependency "sidekiq", "~> 7.2.2", "< 7.2.3"
   s.add_development_dependency "tinder", "~> 1.8"
-  s.add_development_dependency "httparty", "~> 0.10.2"
+  s.add_development_dependency "httparty", "~> 0.21.0"
   s.add_development_dependency "mocha", ">= 0.13.0"
   s.add_development_dependency "sqlite3", ">= 1.3.4"
   s.add_development_dependency "coveralls", "~> 0.8.2"