diff --git a/build.properties b/build.properties
index 64786a9c8..7796d6a7d 100644
--- a/build.properties
+++ b/build.properties
@@ -1,7 +1,7 @@
 minecraft.version=1.7.10
 forge.version=10.13.4.1448-1.7.10
 
-oc.version=1.5.19
+oc.version=1.5.20
 oc.subversion=dev
 
 ae2.version=rv2-beta-26