diff --git a/mongoid.gemspec b/mongoid.gemspec
index 5641a5d78..c91a0532c 100644
--- a/mongoid.gemspec
+++ b/mongoid.gemspec
@@ -37,7 +37,7 @@ Gem::Specification.new do |s|
   # Ruby 3.0 requires ActiveModel 6.0 or higher.
   # activemodel 7.0.0 cannot be used due to Class#descendants issue
   # See: https://github.com/rails/rails/pull/43951
-  s.add_dependency("activemodel", ['>=5.1', '<7.1', '!= 7.0.0'])
+  s.add_dependency("activemodel", ['>=5.1', '!= 7.0.0'])
   s.add_dependency("mongo", ['>=2.10.5', '<3.0.0'])
 
   # The ruby2_keywords gem is recommended for handling argument delegation issues,