diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7893277..775d164 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 All notable changes to this project will be documented in this file.
 
+## 0.3.2
+
+- Adds formatter for CA ~ @devthiago
+
 ## 0.3.1
 
 - Removes forbidden combinations in the Netherlands ~ @gerard76
diff --git a/gemfiles/rails_4.2.gemfile.lock b/gemfiles/rails_4.2.gemfile.lock
index 6b84ef7..012189e 100644
--- a/gemfiles/rails_4.2.gemfile.lock
+++ b/gemfiles/rails_4.2.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    validates_zipcode (0.3.1)
+    validates_zipcode (0.3.2)
       activemodel (>= 4.2.0)
 
 GEM
diff --git a/gemfiles/rails_5.2.gemfile.lock b/gemfiles/rails_5.2.gemfile.lock
index a1cefd3..d1a325c 100644
--- a/gemfiles/rails_5.2.gemfile.lock
+++ b/gemfiles/rails_5.2.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    validates_zipcode (0.3.1)
+    validates_zipcode (0.3.2)
       activemodel (>= 4.2.0)
 
 GEM
diff --git a/gemfiles/rails_6.0.gemfile.lock b/gemfiles/rails_6.0.gemfile.lock
index 056bef4..a64ec0e 100644
--- a/gemfiles/rails_6.0.gemfile.lock
+++ b/gemfiles/rails_6.0.gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: ..
   specs:
-    validates_zipcode (0.3.1)
+    validates_zipcode (0.3.2)
       activemodel (>= 4.2.0)
 
 GEM
diff --git a/gemfiles/rails_edge.gemfile.lock b/gemfiles/rails_edge.gemfile.lock
index 68362bb..3d7a969 100644
--- a/gemfiles/rails_edge.gemfile.lock
+++ b/gemfiles/rails_edge.gemfile.lock
@@ -14,7 +14,7 @@ GIT
 PATH
   remote: ..
   specs:
-    validates_zipcode (0.3.1)
+    validates_zipcode (0.3.2)
       activemodel (>= 4.2.0)
 
 GEM
diff --git a/lib/validates_zipcode/formatter.rb b/lib/validates_zipcode/formatter.rb
index 61edcc3..6a6b6c0 100644
--- a/lib/validates_zipcode/formatter.rb
+++ b/lib/validates_zipcode/formatter.rb
@@ -1,13 +1,13 @@
+# frozen_string_literal: true
 module ValidatesZipcode
   class Formatter
-
-    WORD_CHAR_AND_DIGIT = /[A-Z0-9]/
+    WORD_CHAR_AND_DIGIT = /[A-Z0-9]/.freeze
 
     ZIPCODES_TRANSFORMATIONS = {
       AT: ->(z) { z.scan(/\d/).join },
       CA: ->(z) { z.upcase.scan(WORD_CHAR_AND_DIGIT).insert(3, ' ').join },
       CZ: ->(z) { z.scan(/\d/).insert(3, ' ').join },
-      DE: ->(z) { z.scan(/\d/).join.rjust(5, "0") },
+      DE: ->(z) { z.scan(/\d/).join.rjust(5, '0') },
       GB: ->(z) { z.upcase.scan(WORD_CHAR_AND_DIGIT).insert(-4, ' ').join },
       NL: ->(z) { z.upcase.scan(WORD_CHAR_AND_DIGIT).insert(4, ' ').join },
       PL: ->(z) { z.scan(/\d/).insert(2, '-').join },
@@ -18,7 +18,7 @@ class Formatter
         digits.insert(5, '-') if digits.count > 5
         digits.join
       }
-    }
+    }.freeze
 
     def initialize(args = {})
       @zipcode        = args.fetch(:zipcode).to_s
@@ -36,6 +36,5 @@ def format
         @zipcode.strip
       end
     end
-
   end
-end
\ No newline at end of file
+end
diff --git a/lib/validates_zipcode/version.rb b/lib/validates_zipcode/version.rb
index 76722b4..7db9afc 100644
--- a/lib/validates_zipcode/version.rb
+++ b/lib/validates_zipcode/version.rb
@@ -1,4 +1,4 @@
 # frozen_string_literal: true
 module ValidatesZipcode
-  VERSION = '0.3.1'
+  VERSION = '0.3.2'
 end