diff --git a/h2o-core/build.gradle b/h2o-core/build.gradle
index 365f5918ae24..b7d84f87feaf 100644
--- a/h2o-core/build.gradle
+++ b/h2o-core/build.gradle
@@ -13,7 +13,7 @@ dependencies {
   // Required for h2o-core
   compile "joda-time:joda-time:2.9.9"
   compile "gov.nist.math:jama:1.0.3"
-  compile 'org.javassist:javassist:3.27.0-GA'
+  compile 'org.javassist:javassist:3.27.1-SNAPSHOT'
   compile "org.apache.commons:commons-math3:3.3"
   compile "commons-io:commons-io:2.4"
   compileOnly "javax.servlet:javax.servlet-api:3.1.0"