diff --git a/nightly/conf/nightly.conf b/nightly/conf/nightly.conf
index 2fbcbc4b6..c6de91939 100644
--- a/nightly/conf/nightly.conf
+++ b/nightly/conf/nightly.conf
@@ -3,7 +3,7 @@
 ABT_DETAILS="x86_64"
 ABT_JOBS=5
 ABT_KERNELS="  \
-3.18.5         \
+3.18.6         \
 3.17.8-nc      \
 3.16.7-nc      \
 3.15.10-nc     \