diff --git a/ClassyPrelude.hs b/ClassyPrelude.hs
--- a/ClassyPrelude.hs
+++ b/ClassyPrelude.hs
@@ -168,7 +168,7 @@
 import Control.Monad.Catch (MonadThrow (throwM))
 
 import Data.Vector.Instances ()
-import CorePrelude hiding (print, undefined, (<>))
+import CorePrelude hiding (print, undefined, (<>), catMaybes)
 import Data.ChunkedZip
 import qualified Data.Char as Char
 import Data.Sequences
diff --git a/classy-prelude.cabal b/classy-prelude.cabal
--- a/classy-prelude.cabal
+++ b/classy-prelude.cabal
@@ -1,5 +1,5 @@
 name:                classy-prelude
-version:             0.9.4
+version:             0.9.5
 synopsis:            A typeclass-based Prelude.
 description:         Focuses on using common typeclasses when possible, and creating new ones to avoid name clashing. Exposes many recommended datastructures (Map, ByteString, etc) directly without requiring long import lists and qualified modules.
 homepage:            https://github.com/snoyberg/classy-prelude
@@ -24,7 +24,7 @@
                      , unordered-containers
                      , hashable
                      , lifted-base                   >= 0.2
-                     , mono-traversable              >= 0.6.1
+                     , mono-traversable              >= 0.6.2
                      , exceptions                    >= 0.5
                      , semigroups
                      , vector-instances