diff --git a/CHANGES.md b/CHANGES.md
index 0d24efb4456..3cb79e0dbc9 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,7 +4,7 @@ Libplanet changelog
 Version 0.1.1
 -------------
 
-To be released.
+Released on March 5, 2019.
 
  -  Improved stability of `Swarm` and `SwarmTest`.
 
diff --git a/Libplanet/Libplanet.csproj b/Libplanet/Libplanet.csproj
index 086b7a4c69c..4be8d87d014 100644
--- a/Libplanet/Libplanet.csproj
+++ b/Libplanet/Libplanet.csproj
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <PackageId>Libplanet</PackageId>
     <Title>Libplanet</Title>
-    <Version>0.1.1-dev</Version>
+    <Version>0.1.1</Version>
     <Summary>A .NET library for creating multiplayer online game in decentralized fashion.</Summary>
     <Description>A .NET library for creating multiplayer online game in decentralized fashion.
 See also the docs for details: