diff --git a/build.gradle b/build.gradle
index 5e44adb1a6a9e787b222c5c15a7a2599df48dffa..dbbc9701cfcf8d51d6992c903659e3fadc96cc4f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -125,10 +125,10 @@ buildscript {
 }
 
 dependencies {
-	compile group: 'commons-io', name: 'commons-io', version: '+'
-	compile group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '+'
+	compile group: 'commons-io', name: 'commons-io', version: '2.+'
+	compile group: 'com.fasterxml.jackson.core', name: 'jackson-databind', version: '2.+'
 	compile group: 'com.jolbox', name: 'bonecp', version: '+'
-	compile group: 'com.tngtech.java', name: 'config-builder', version: '+'
+	compile group: 'com.tngtech.java', name: 'config-builder', version: '1.+'
 	compile group: 'org.postgresql', name: 'postgresql', version: '9.2-1004-jdbc41'
 
 	runtime 'org.slf4j:jcl-over-slf4j:1+'