diff --git a/build.properties b/build.properties
index 0282f426f09..66876bffcc4 100644
--- a/build.properties
+++ b/build.properties
@@ -13,7 +13,7 @@ bundlor.servlet.version=2.5.0
 bundlor.jndi.version=1.2.0
 bundlor.servlet.jsp.version=2.1.0
 bundlor.radeox.version=1.0.0.b2
-bundlor.groovy.version=1.8.5
+bundlor.groovy.version=1.8.6
 bundlor.spring.version=3.1.0.RELEASE
 bundlor.ant.version=1.8.2
 bundlor.ivy.version=2.0.0
diff --git a/dependencies.txt b/dependencies.txt
index 7034ecd6d0f..00a81531497 100644
--- a/dependencies.txt
+++ b/dependencies.txt
@@ -88,8 +88,8 @@ The following libraries are included in Grails because they are required either
 - Gant 1.9.5 (http://gant.codehaus.org) Apache 2.0 License
 - required for the command line tools (Gant)
 
-* groovy-all-1.8.5.jar
-- Groovy 1.8.5 (http://groovy.codehaus.org) Apache 2.0 License
+* groovy-all-1.8.6.jar
+- Groovy 1.8.6 (http://groovy.codehaus.org) Apache 2.0 License
 - required for the command line tools (Gant)
 - required for building Grails core
 - required for running Grails applications