diff --git a/rust-toolchain b/rust-toolchain
index 48887947cdf79def91de84d444cf49fe8aeb3d6b..1b564641e87864de685fe8a007a6d198d2dc9ee1 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly-2018-11-07
+nightly-2019-04-06