diff --git a/rust-toolchain b/rust-toolchain
new file mode 100644
index 0000000000000000000000000000000000000000..9db5ea12f52279a37e2d5c8280e97f2c9f83aa8a
--- /dev/null
+++ b/rust-toolchain
@@ -0,0 +1 @@
+1.48.0