diff --git a/library/YamlUnscrambler/Util/Vector.hs b/library/YamlUnscrambler/Util/Vector.hs
--- a/library/YamlUnscrambler/Util/Vector.hs
+++ b/library/YamlUnscrambler/Util/Vector.hs
@@ -1,10 +1,10 @@
 module YamlUnscrambler.Util.Vector
 where
 
-import YamlUnscrambler.Prelude hiding (lookup)
+import YamlUnscrambler.Prelude as Prelude hiding (lookup)
 import Data.Vector
 
 
 lookupFirst :: [Int] -> Vector a -> Maybe (Int, a)
 lookupFirst keys vector =
-  getFirst (foldMap (\ k -> First (fmap (k,) (vector !? k))) keys)
+  getFirst (Prelude.foldMap (\ k -> First (fmap (k,) (vector !? k))) keys)
diff --git a/yaml-unscrambler.cabal b/yaml-unscrambler.cabal
--- a/yaml-unscrambler.cabal
+++ b/yaml-unscrambler.cabal
@@ -1,5 +1,5 @@
 name: yaml-unscrambler
-version: 0.1.0.1
+version: 0.1.0.2
 synopsis: Flexible declarative YAML parsing toolkit
 stability: Experimental
 homepage: https://github.com/nikita-volkov/yaml-unscrambler