diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
-## 0.1.0.0 -- 2021-01-XX
+## 0.2.0.0 -- 2021-01-13
+
+* Lax tlex constraints.
+
+## 0.1.0.0 -- 2021-01-07
 
 * First version. Released on an unsuspecting world.
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,1 +1,5 @@
+# Tlex Debug Utilities
+
+[![Hackage](https://img.shields.io/hackage/v/tlex-debug.svg)](https://hackage.haskell.org/package/tlex-debug)
+
 See https://hackage.haskell.org/package/tlex
diff --git a/tlex-debug.cabal b/tlex-debug.cabal
--- a/tlex-debug.cabal
+++ b/tlex-debug.cabal
@@ -2,7 +2,7 @@
 build-type:          Custom
 
 name:                tlex-debug
-version:             0.1.0.0
+version:             0.2.0.0
 license:             Apache-2.0 OR MPL-2.0
 license-file:        LICENSE
 copyright:           (c) 2021 Mizunashi Mana
@@ -92,8 +92,8 @@
         base                 >= 4.12.0 && < 4.15,
 
         -- project depends
-        tlex-core            >= 0.1.0 && < 0.2,
-        tlex                 >= 0.1.0 && < 0.2,
+        tlex-core            >= 0.1.0 && < 0.3,
+        tlex                 >= 0.1.0 && < 0.3,
         containers           >= 0.6.0 && < 0.7,
         unordered-containers >= 0.2.13 && < 0.3,