diff --git a/rust-toolchain b/rust-toolchain
index 62aee67e9..51ae3da28 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
-# @rustc_version: rustc 1.89.0-nightly (255aa2208 2025-06-19)
+# @rustc_version: rustc 1.90.0-nightly (adcb3d3b4 2025-07-31)
 [toolchain]
-channel = "nightly-2025-06-20"
+channel = "nightly-2025-08-01"