diff --git a/CHANGELOG.rst b/CHANGELOG.rst
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -7,6 +7,24 @@
 .. _PVP: https://pvp.haskell.org/
 
 
+1.2.1.0 (2019-01-20)
+--------------------
+
+* Git: :tag:`tasty-dejafu-1.2.1.0`
+* Hackage: :hackage:`tasty-dejafu-1.2.1.0`
+
+Added
+~~~~~
+
+* Re-export of the ``Condition`` type from :hackage:`dejafu`.  If
+  using dejafu < 1.12, this is an alias for ``Failure``.
+
+Miscellaneous
+~~~~~~~~~~~~~
+
+* The upper bound on :hackage:`dejafu` is <1.13
+
+
 1.2.0.8 (2018-12-02)
 --------------------
 
diff --git a/Test/Tasty/DejaFu.hs b/Test/Tasty/DejaFu.hs
--- a/Test/Tasty/DejaFu.hs
+++ b/Test/Tasty/DejaFu.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE CPP #-}
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE GADTs #-}
@@ -39,6 +40,7 @@
   , testDejafusWithSettings
 
   -- ** Re-exports
+  , Condition
   , Predicate
   , ProPredicate(..)
   , module Test.DejaFu.Settings
@@ -81,6 +83,17 @@
 import           Test.Tasty.Providers   (IsTest(..), singleTest, testFailed,
                                          testPassed)
 
+showCondition :: Condition -> String
+#if MIN_VERSION_dejafu(1,12,0)
+showCondition = Conc.showCondition
+#else
+-- | An alias for 'Failure'.
+--
+-- @since 1.2.1.0
+type Condition = Failure
+showCondition = Conc.showFail
+#endif
+
 --------------------------------------------------------------------------------
 -- Tasty-style unit testing
 
@@ -219,7 +232,7 @@
 --
 -- @since 1.0.0.0
 testDejafuDiscard :: Show b
-  => (Either Failure a -> Maybe Discard)
+  => (Either Condition a -> Maybe Discard)
   -- ^ Selectively discard results.
   -> Way
   -- ^ How to execute the concurrent program.
@@ -283,7 +296,7 @@
 --
 -- @since 1.0.1.0
 testDejafusDiscard :: Show b
-  => (Either Failure a -> Maybe Discard)
+  => (Either Condition a -> Maybe Discard)
   -- ^ Selectively discard results.
   -> Way
   -- ^ How to execute the concurrent program.
@@ -337,7 +350,7 @@
 -- Tasty integration
 
 data ConcTest where
-  ConcTest :: Show b => IO [(Either Failure a, Conc.Trace)] -> ([(Either Failure a, Conc.Trace)] -> Result b) -> ConcTest
+  ConcTest :: Show b => IO [(Either Condition a, Conc.Trace)] -> ([(Either Condition a, Conc.Trace)] -> Result b) -> ConcTest
   deriving Typeable
 
 data PropTest where
@@ -397,7 +410,7 @@
 
   msg = if null (_failureMsg res) then "" else _failureMsg res ++ "\n"
 
-  failures = intersperse "" . map (\(r, t) -> indent $ either Conc.showFail show r ++ " " ++ Conc.showTrace t) . take 5 $ _failures res
+  failures = intersperse "" . map (\(r, t) -> indent $ either showCondition show r ++ " " ++ Conc.showTrace t) . take 5 $ _failures res
 
   rest = if moreThan (_failures res) 5 then "\n\t..." else ""
 
diff --git a/tasty-dejafu.cabal b/tasty-dejafu.cabal
--- a/tasty-dejafu.cabal
+++ b/tasty-dejafu.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                tasty-dejafu
-version:             1.2.0.8
+version:             1.2.1.0
 synopsis:            Deja Fu support for the Tasty test framework.
 
 description:
@@ -30,14 +30,14 @@
 source-repository this
   type:     git
   location: https://github.com/barrucadu/dejafu.git
-  tag:      tasty-dejafu-1.2.0.8
+  tag:      tasty-dejafu-1.2.1.0
 
 library
   exposed-modules:     Test.Tasty.DejaFu
   -- other-modules:       
   -- other-extensions:    
   build-depends:       base   >=4.9  && <5
-                     , dejafu >=1.5  && <1.12
+                     , dejafu >=1.5  && <1.13
                      , random >=1.0  && <1.2
                      , tagged >=0.8  && <0.9
                      , tasty  >=0.10 && <1.3