diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 # Revision history for greskell
 
+## 1.1.0.1  -- 2020-05-30
+
+* Support `aeson-1.5.0.0`.
+
 ## 1.1.0.0  -- 2020-04-26
 
 ### GTraversal module
diff --git a/greskell.cabal b/greskell.cabal
--- a/greskell.cabal
+++ b/greskell.cabal
@@ -1,5 +1,5 @@
 name:                   greskell
-version:                1.1.0.0
+version:                1.1.0.1
 author:                 Toshio Ito <debug.ito@gmail.com>
 maintainer:             Toshio Ito <debug.ito@gmail.com>
 license:                BSD3
@@ -42,7 +42,7 @@
                         greskell-core >=0.1.3.0 && <0.2,
                         text >=1.2.2.1 && <1.3,
                         transformers >=0.5.2 && <0.6,
-                        aeson >=0.11.2.1 && <1.5,
+                        aeson >=0.11.2.1 && <1.6,
                         unordered-containers >=0.2.7.1 && <0.3,
                         semigroups >=0.18.2 && <0.20,
                         vector >=0.12.0.1 && <0.13,