diff --git a/gem/lib/mulang/expectation/i18n.rb b/gem/lib/mulang/expectation/i18n.rb
index e695081dc..159120d1b 100644
--- a/gem/lib/mulang/expectation/i18n.rb
+++ b/gem/lib/mulang/expectation/i18n.rb
@@ -9,7 +9,7 @@ def translate(e, tokens = nil)
     def translate!(e, tokens = nil)
       e = e.as_v2
       key = key_for e.binding, e.inspection
-      ::I18n.t key, translation_params(e, tokens)
+      ::I18n.t(key, **translation_params(e, tokens))
     end
 
     alias t translate
@@ -41,7 +41,7 @@ def t_target(parsed)
     end
 
     def t_matching(tokens, parsed)
-      ::I18n.t("mulang.expectation.#{parsed.matcher.type}", with_tokens(tokens, value: parsed.matcher.value)) if parsed.matcher
+      ::I18n.t("mulang.expectation.#{parsed.matcher.type}", **with_tokens(tokens, value: parsed.matcher.value)) if parsed.matcher
     end
 
     def with_tokens(tokens, params)
diff --git a/gem/mulang.gemspec b/gem/mulang.gemspec
index 753334600..b3bf817fc 100644
--- a/gem/mulang.gemspec
+++ b/gem/mulang.gemspec
@@ -21,7 +21,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "mumukit-core", '~> 1.19'
 
   spec.add_development_dependency 'codeclimate-test-reporter'
-  spec.add_development_dependency "activesupport", "~> 6.0"
+  spec.add_development_dependency "activesupport", ">= 6.0"
   spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "pry", "~> 3.0"