diff --git a/salak-yaml.cabal b/salak-yaml.cabal
--- a/salak-yaml.cabal
+++ b/salak-yaml.cabal
@@ -1,6 +1,6 @@
 cabal-version: 1.12
 name: salak-yaml
-version: 0.2.7
+version: 0.2.8
 license: BSD3
 license-file: LICENSE
 copyright: (c) 2018 Daniel YU
@@ -25,7 +25,7 @@
         aeson >=1.4.2.0 && <1.5,
         base >=4.10 && <5,
         mtl >=2.2.2 && <2.3,
-        salak ==0.2.7,
+        salak ==0.2.8,
         unordered-containers >=0.2.9.0 && <0.3,
         vector >=0.12.0.2 && <0.13,
         yaml >=0.11.0.0 && <0.12
@@ -44,7 +44,7 @@
         base >=4.10 && <5,
         hspec ==2.*,
         mtl >=2.2.2 && <2.3,
-        salak ==0.2.7,
+        salak ==0.2.8,
         text >=1.2.3.1 && <1.3,
         unordered-containers >=0.2.9.0 && <0.3,
         vector >=0.12.0.2 && <0.13,