diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70ef6cee..2fd7cc3a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,12 +1,23 @@
 # Changelog
 
+## 0.1.6 - ROADMAP
+
+* [#73](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/73) - Allow user to override GEM directory for `JRubyExec`
+
+## 0.1.5
+
+* [#70](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/70) - Run executable scripts from gem dependency
+
+## 0.1.4
+
+* [#68](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/68) - `JRubyExec` should unset/overwrite `GEM_HOME/GEM_PATH`
 
 ## 0.1.3
 
-* [#53](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/53) - JRubyExec should not overwrite gems on every run
-* [#57](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/57) - Make JRuby 1.7.16 the default
+* [#53](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/53) - `JRubyExec` should not overwrite gems on every run
+* [#57](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/57) - Make `JRuby` 1.7.16 the default
 * [#58](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/58) - Make build independent of project directory name
-* [#61](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/61) - "Native" gems are not properly supported 
-* [#63](https://github.com/jruby-gradle/jruby-gradle-plugin/pull/63) - Make the JRubyExec `script` argument optional provided `jrubyArgs` is present
-* [#64](https://github.com/jruby-gradle/jruby-gradle-plugin/pull/64) - Updates to JRubyExec & project.jrubyexec to handle '-S'
+* [#61](https://github.com/jruby-gradle/jruby-gradle-plugin/issues/61) - _Native_ gems are not properly supported 
+* [#63](https://github.com/jruby-gradle/jruby-gradle-plugin/pull/63) - Make the `JRubyExec` `script` argument optional provided `jrubyArgs` is present
+* [#64](https://github.com/jruby-gradle/jruby-gradle-plugin/pull/64) - Updates to `JRubyExec` & `project.jrubyexec` to handle `-S`
 
diff --git a/README.md b/README.md
index 0fc43dfe..ecae4a23 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,8 @@ Common methods for ```JRubyExec``` for executing a script
 * ```ignoreExitValue``` - ```Boolean```.  Ignore the JVm exit value. Exit values are only effective if the exit value of the Ruby script is correctly communicated back to the JVM.
 * ```configuration``` - ```String```.  Configuration to copy gems from. (*) 
 * ```classpath``` - ```List```.  Additional Jars/Directories to place on classpath.
-* ```jrubyVersion``` - ```String```.  JRuby version to use if not the same as ```project.jruby.execVersion```. 
+* ```jrubyVersion``` - ```String```.  JRuby version to use if not the same as ```project.jruby.execVersion```.
+* ```gemWorkDir``` - ```File```. Provide a custom working directory for unpacking GEMs. 
 
 (*) If ```jRubyVersion``` has not been set, ```jrubyExec``` will used as
 configuration. However, if ```jRubyVersion``` has been set, no gems will be used unless an explicit configuration has been provided
diff --git a/src/main/groovy/com/github/jrubygradle/JRubyExec.groovy b/src/main/groovy/com/github/jrubygradle/JRubyExec.groovy
index 3164a496..327d317e 100644
--- a/src/main/groovy/com/github/jrubygradle/JRubyExec.groovy
+++ b/src/main/groovy/com/github/jrubygradle/JRubyExec.groovy
@@ -56,6 +56,12 @@ class JRubyExec extends JavaExec {
     @Input
     String jrubyVersion
 
+    /** Set the GEM directory to be used by the task. If not set, then an internal generated directory will be used.
+     * The default behaviour is to allow each JRubyExec task to run in isolation from each other. By setting this
+     * a script can allow different JRubyExec instances to utilise the same folder.
+     *
+     * @since 0.1.6
+     */
     @OutputDirectory
     File gemWorkDir