diff --git a/lib/simple_form/form_builder.rb b/lib/simple_form/form_builder.rb
index ce942172..19d1e31d 100644
--- a/lib/simple_form/form_builder.rb
+++ b/lib/simple_form/form_builder.rb
@@ -11,9 +11,9 @@ module SimpleForm
     ACTIONS = {
       'create' => 'new',
       'update' => 'edit'
-    }.freeze
+    }
 
-    ATTRIBUTE_COMPONENTS = %i[html5 min_max maxlength minlength placeholder pattern readonly].freeze
+    ATTRIBUTE_COMPONENTS = %i[html5 min_max maxlength minlength placeholder pattern readonly]
 
     extend MapType
     include SimpleForm::Inputs
diff --git a/lib/simple_form/inputs/collection_input.rb b/lib/simple_form/inputs/collection_input.rb
index 5f5c066f..ee300ad0 100644
--- a/lib/simple_form/inputs/collection_input.rb
+++ b/lib/simple_form/inputs/collection_input.rb
@@ -2,7 +2,7 @@
 module SimpleForm
   module Inputs
     class CollectionInput < Base
-      BASIC_OBJECT_CLASSES = [String, Integer, Float, NilClass, Symbol, TrueClass, FalseClass].freeze
+      BASIC_OBJECT_CLASSES = [String, Integer, Float, NilClass, Symbol, TrueClass, FalseClass]
       BASIC_OBJECT_CLASSES.push(Fixnum, Bignum) unless 1.class == Integer
 
       # Default boolean collection for use with selects/radios when no