diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 83025f9721..743f7cd993 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.77.0"
+channel = "1.72.0"