diff --git a/CHANGELOG.md b/CHANGELOG.md
index a14585f..2fbcc79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -56,7 +56,7 @@
 - Elixir version requirement increased to Elixir 1.8+
 - ETS table normalization for performance improvements over 0.5.x releases
 - .ets release files now have contents with a different structure
-- Because of the different structre the .ets files now have a different file ending. E.g.: 2019a.v2.ets
+- Because of the different structure the .ets files now have a different file ending. E.g.: 2019a.v2.ets
 
 ### Added
 
diff --git a/lib/tzdata/util.ex b/lib/tzdata/util.ex
index cd856c4..9467a23 100644
--- a/lib/tzdata/util.ex
+++ b/lib/tzdata/util.ex
@@ -287,7 +287,7 @@ defmodule Tzdata.Util do
   end
 
   @doc """
-  Given a string of a Rule "AT" column return a tupple of a erlang style
+  Given a string of a Rule "AT" column return a tuple of a erlang style
   time tuple and a modifier that can be either :wall, :standard or :utc
 
   ## Examples
diff --git a/test/tz_util_test.exs b/test/tz_util_test.exs
index f37deb3..623974d 100644
--- a/test/tz_util_test.exs
+++ b/test/tz_util_test.exs
@@ -10,7 +10,7 @@ defmodule UtilTest do
     assert TzUtil.last_weekday_of_month(2014, 8, 4) == 28
     # last sunday of Aug 2014 should be on the 31st
     assert TzUtil.last_weekday_of_month(2014, 8, 7) == 31
-    # should also accept string with english abbrevations of weekdays
+    # should also accept string with english abbreviations of weekdays
     assert TzUtil.last_weekday_of_month(2014, 8, "sun") == 31
     assert TzUtil.last_weekday_of_month(2014, 8, "thu") == 28
   end