diff --git a/CHANGELOG.md b/CHANGELOG.md
index de48a49..6a6c064 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 2.3.0
+
+Changes:
+
+* Switch to new style of Dockerfile
+* Challenge slugs can start with a digit
+
 ## 2.2.2
 
 Improvements:
diff --git a/Handler/Swagger.hs b/Handler/Swagger.hs
index d5ecd2f..23299ab 100644
--- a/Handler/Swagger.hs
+++ b/Handler/Swagger.hs
@@ -34,4 +34,4 @@ generalApi :: Swagger
 generalApi = (mempty :: Swagger)
   & info .~ (mempty &
               title .~ "Gonito API" &
-              version .~ "2.1.0")
+              version .~ "2.3.0")
diff --git a/config/settings.yml b/config/settings.yml
index 1aacbfc..7d707ff 100644
--- a/config/settings.yml
+++ b/config/settings.yml
@@ -44,7 +44,7 @@ database:
   database: "_env:PGDATABASE:gonito"
   poolsize: "_env:PGPOOLSIZE:10"
 
-copyright: © Filip Graliński, Gonito ver. 2.1.0
+copyright: © Filip Graliński, Gonito ver. 2.3.0
 
 admin-user: "_env:ADMINUSER:"
 admin-password: "_env:ADMINPASS:"
diff --git a/gonito.cabal b/gonito.cabal
index 35bf72f..23d0301 100644
--- a/gonito.cabal
+++ b/gonito.cabal
@@ -1,5 +1,5 @@
 name:              gonito
-version:           2.2.2
+version:           2.3.0
 cabal-version:     >= 1.8
 build-type:        Simple
 homepage:          http://gonito.net