diff --git a/lib/workato/connector/sdk/dsl/csv_package.rb b/lib/workato/connector/sdk/dsl/csv_package.rb
index f569beb..f9be726 100644
--- a/lib/workato/connector/sdk/dsl/csv_package.rb
+++ b/lib/workato/connector/sdk/dsl/csv_package.rb
@@ -21,7 +21,7 @@ class CsvFileTooBigError < CsvError
 
         sig { params(size: Integer, max: Integer).void }
         def initialize(size, max)
-          super("CSV file is too big. Max allowed: #{max.to_s(:human_size)}, got: #{size.to_s(:human_size)}")
+          super("CSV file is too big. Max allowed: #{max.to_fs(:human_size)}, got: #{size.to_fs(:human_size)}")
           @size = T.let(size, Integer)
           @max = T.let(max, Integer)
         end
diff --git a/workato-connector-sdk.gemspec b/workato-connector-sdk.gemspec
index 1d1aabf..6c1db42 100644
--- a/workato-connector-sdk.gemspec
+++ b/workato-connector-sdk.gemspec
@@ -32,7 +32,7 @@ Gem::Specification.new do |spec|
 
   spec.required_ruby_version = '>= 2.7.6'
 
-  spec.add_dependency 'activesupport', '>= 5.2', '< 7.1'
+  spec.add_dependency 'activesupport', '>= 5.2', '< 8.1'
   spec.add_dependency 'aws-sigv4', '~> 1.2', '>= 1.2.4'
   spec.add_dependency 'bundler', '~> 2.0'
   spec.add_dependency 'charlock_holmes', '~> 0.7', '>= 0.7.7'