diff --git a/xtask/src/install.rs b/xtask/src/install.rs
index 3b79cca0d3..4c5c2673cc 100644
--- a/xtask/src/install.rs
+++ b/xtask/src/install.rs
@@ -6,7 +6,7 @@ use anyhow::{bail, format_err, Context, Result};
 use xshell::{cmd, pushd};
 
 // Latest stable, feel free to send a PR if this lags behind.
-const REQUIRED_RUST_VERSION: u32 = 47;
+const REQUIRED_RUST_VERSION: u32 = 50;
 
 pub struct InstallCmd {
     pub client: Option<ClientOpt>,