diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for taskwarrior
 
+## 0.1.2.1
+
+* Remove string-interpolate dependency
+
 ## 0.1.2.0 -- 2019-12-23
 
 * Added `getUUIDs` function.
diff --git a/src/Taskwarrior/Mask.hs b/src/Taskwarrior/Mask.hs
--- a/src/Taskwarrior/Mask.hs
+++ b/src/Taskwarrior/Mask.hs
@@ -1,5 +1,5 @@
-{-# LANGUAGE LambdaCase, QuasiQuotes #-}
--- | The Mask module models the state a recurring parent saves about it‘s child tasks.
+{-# LANGUAGE LambdaCase #-}
+-- | The Mask module models the state a recurring parent saves about its child tasks.
 module Taskwarrior.Mask
   ( Mask(..)
   , MaskState
@@ -7,7 +7,6 @@
 where
 
 import qualified Data.Text                     as Text
-import           Data.String.Interpolate        ( i )
 import qualified Data.Aeson                    as Aeson
 import qualified Data.Aeson.Types              as Aeson.Types
 
@@ -34,7 +33,7 @@
   '+'  -> pure Completed
   'X'  -> pure Deleted
   'W'  -> pure Waiting
-  char -> fail [i|Not a Mask Char: '#{char}'|]
+  char -> fail $ "Not a Mask Char: '"++[char]++"'"
 
 instance Aeson.ToJSON Mask where
   toJSON = Aeson.String . Text.pack . fmap toChar . mask
diff --git a/taskwarrior.cabal b/taskwarrior.cabal
--- a/taskwarrior.cabal
+++ b/taskwarrior.cabal
@@ -4,7 +4,7 @@
 -- PVP summary:     +-+------- breaking API changes
 --                  | | +----- non-breaking API additions
 --                  | | | +--- code changes with no API change
-version: 0.1.2.0
+version: 0.1.2.1
 synopsis:           Types and aeson instances for taskwarrior tasks
 description:
   Types and aeson instances for the https://taskwarrior.org task import/export feature
@@ -35,7 +35,6 @@
   default-extensions:
     LambdaCase
     OverloadedStrings
-    QuasiQuotes
     RecordWildCards
 
   build-depends:
@@ -44,7 +43,6 @@
     , bytestring            ^>=0.10.8.2
     , process               ^>=1.6.5.0
     , random                ^>=1.1
-    , string-interpolate    >=0.1.0.0  && <0.3
     , text                  ^>=1.2.3.1
     , time                  >=1.8.0.2  && <1.10
     , unordered-containers  ^>=0.2.9.0