diff --git a/CHANGELOG.markdown b/CHANGELOG.markdown
index c61bfad..252d66c 100644
--- a/CHANGELOG.markdown
+++ b/CHANGELOG.markdown
@@ -1,3 +1,7 @@
+## 0.4.1
+
+* Remove unnecessary `io:format` call.
+
 ## 0.4.0
 
 * Remove dependency on a running server for tracking application state.
diff --git a/src/qdate.app.src b/src/qdate.app.src
index 8d9290b..ac788b6 100644
--- a/src/qdate.app.src
+++ b/src/qdate.app.src
@@ -1,7 +1,7 @@
 {application, qdate,
  [
   {description, "Simple Date and Timezone handling for Erlang"},
-  {vsn, "0.4.0"},
+  {vsn, "0.4.1"},
   {registered, []},
   {applications, [
                   kernel,