diff --git a/README.md b/README.md
index 9ea6d26..c251dc3 100644
--- a/README.md
+++ b/README.md
@@ -86,9 +86,9 @@ virtualenv will be created with given name based on current
 version.
 
 ```
-  $ pyenv version
-  3.4.1 (set by /home/yyuu/.pyenv/version)
-  $ pyenv virtualenv venv34
+$ pyenv version
+3.4.1 (set by /home/yyuu/.pyenv/version)
+$ pyenv virtualenv venv34
 ```
 
 
@@ -128,6 +128,11 @@ You can set certain environment variables to control the pyenv-virtualenv.
 
 ## Version History
 
+#### 20140615
+
+ * Fix incompatibility issue of `pyenv activate` and `pyenv deactivate` (#26)
+ * Workaround for the issue with pyenv-which-ext (#26)
+
 #### 20140614
 
  * Add `pyenv virtualenv-init` to enable auto-activation feature (#24)
diff --git a/bin/pyenv-virtualenv b/bin/pyenv-virtualenv
index feca2ad..ca5f801 100755
--- a/bin/pyenv-virtualenv
+++ b/bin/pyenv-virtualenv
@@ -11,7 +11,7 @@
 #   -f/--force       Install even if the version appears to be installed already
 #
 
-PYENV_VIRTUALENV_VERSION="20140614"
+PYENV_VIRTUALENV_VERSION="20140615"
 
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
diff --git a/test/version.bats b/test/version.bats
index 247d5e9..403b0e5 100644
--- a/test/version.bats
+++ b/test/version.bats
@@ -4,7 +4,7 @@ load test_helper
 
 setup() {
   export PYENV_ROOT="${TMP}/pyenv"
-  export PYENV_VIRTUALENV_VERSION="20140614"
+  export PYENV_VIRTUALENV_VERSION="20140615"
 }
 
 @test "display virtualenv version" {