diff --git a/Egison.hs b/Egison.hs
--- a/Egison.hs
+++ b/Egison.hs
@@ -11,7 +11,7 @@
 import Paths_egison
 
 welcomeMsg :: String
-welcomeMsg = "Egison, version 1.0.2 : http://hagi.is.s.u-tokyo.ac.jp/~egi/egison/\nWelcome to Egison Interpreter!\n"
+welcomeMsg = "Egison, version 1.0.4 : http://hagi.is.s.u-tokyo.ac.jp/~egi/egison/\nWelcome to Egison Interpreter!\n"
 
 byebyeMsg :: String
 byebyeMsg = "\nLeaving Egison.\nByebye. See you again! (^^)/\n"
diff --git a/egison.cabal b/egison.cabal
--- a/egison.cabal
+++ b/egison.cabal
@@ -7,7 +7,7 @@
 -- The package version. See the Haskell package versioning policy
 -- (http://www.haskell.org/haskellwiki/Package_versioning_policy) for
 -- standards guiding when and how versions should be incremented.
-Version:             1.0.3
+Version:             1.0.4
 
 -- A short (one-line) description of the package.
 Synopsis:            An Interpreter for the Programming Language Egison