diff --git a/xtask/src/install.rs b/xtask/src/install.rs
index bc32a04b307..9ba77a3aaee 100644
--- a/xtask/src/install.rs
+++ b/xtask/src/install.rs
@@ -7,7 +7,7 @@
 use crate::not_bash::{pushd, run};
 
 // Latest stable, feel free to send a PR if this lags behind.
-const REQUIRED_RUST_VERSION: u32 = 41;
+const REQUIRED_RUST_VERSION: u32 = 43;
 
 pub struct InstallCmd {
     pub client: Option<ClientOpt>,