diff --git a/Cargo.toml b/Cargo.toml
index a68c04092f..bc0109a2ff 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -54,5 +54,5 @@ cargo_miri = ["cargo_metadata", "directories", "rustc_version"]
 rustc_tests = []
 
 [dev-dependencies]
-compiletest_rs = { version = "0.3.17", features = ["tmp", "stable"] }
+compiletest_rs = { version = "=0.3.19", features = ["tmp", "stable"] }
 colored = "1.6"
diff --git a/rust-version b/rust-version
index 0979a384dd..04dab0fba1 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-nightly-2019-03-18
+nightly-2019-03-20