diff --git a/couchbase-orm.gemspec b/couchbase-orm.gemspec
index 5a67a51..b67bee8 100644
--- a/couchbase-orm.gemspec
+++ b/couchbase-orm.gemspec
@@ -23,6 +23,7 @@ Gem::Specification.new do |gem|
   gem.add_runtime_dependency     'couchbase',    '>= 3.4.2'
   gem.add_runtime_dependency     'radix',        '~> 2.2' # converting numbers to and from any base
   gem.add_runtime_dependency     'json-schema',  '>= 3' # validating JSON against a schema
+  gem.add_runtime_dependency     'logger',       '~> 1.6' # Required from Ruby 3.5.0+
 
   gem.add_development_dependency 'rake', '~> 12.2'
   gem.add_development_dependency 'rspec', '~> 3.7'