diff --git a/fuzzy-time-gen.cabal b/fuzzy-time-gen.cabal
--- a/fuzzy-time-gen.cabal
+++ b/fuzzy-time-gen.cabal
@@ -4,10 +4,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 76078bb82707ef2022f531cb640a19b0dea27cd42d2104810cc583840f923325
+-- hash: a789803a4544cb2037b7e586a66defaeb7f689676547db65c867f17217196b96
 
 name:           fuzzy-time-gen
-version:        0.0.0.0
+version:        0.1.0.0
 description:    Generators for fuzzy-time types
 category:       Time
 homepage:       https://github.com/NorfairKing/fuzzy-time
diff --git a/src/Data/FuzzyTime/Types/Gen.hs b/src/Data/FuzzyTime/Types/Gen.hs
--- a/src/Data/FuzzyTime/Types/Gen.hs
+++ b/src/Data/FuzzyTime/Types/Gen.hs
@@ -65,9 +65,9 @@
     isValid
   shrinkValid = shrinkValidStructurally
 
-instance GenUnchecked DayOfTheWeek
+instance GenUnchecked DayOfWeek
 
-instance GenValid DayOfTheWeek where
+instance GenValid DayOfWeek where
   genValid = genValidStructurally
   shrinkValid = shrinkValidStructurally
 
diff --git a/test/Data/FuzzyTime/ParserSpec.hs b/test/Data/FuzzyTime/ParserSpec.hs
--- a/test/Data/FuzzyTime/ParserSpec.hs
+++ b/test/Data/FuzzyTime/ParserSpec.hs
@@ -260,7 +260,7 @@
     let fd = parseJustSpecR fuzzyDayOfTheWeekP
     forM_ dayOfTheWeekStrings $ \(dow, ix, s) -> fd ix s dow
 
-dayOfTheWeekStrings :: [(DayOfTheWeek, Int, Text)]
+dayOfTheWeekStrings :: [(DayOfWeek, Int, Text)]
 dayOfTheWeekStrings =
   [ (Monday, 1, "monday")
   , (Tuesday, 2, "tuesday")
diff --git a/test/Data/FuzzyTime/TypesSpec.hs b/test/Data/FuzzyTime/TypesSpec.hs
--- a/test/Data/FuzzyTime/TypesSpec.hs
+++ b/test/Data/FuzzyTime/TypesSpec.hs
@@ -20,7 +20,7 @@
   genValidSpec @FuzzyTimeOfDay
   eqSpecOnValid @FuzzyDay
   genValidSpec @FuzzyDay
-  eqSpecOnValid @DayOfTheWeek
-  genValidSpec @DayOfTheWeek
+  eqSpecOnValid @DayOfWeek
+  genValidSpec @DayOfWeek
   eqSpecOnValid @Month
   genValidSpec @Month