diff --git a/build.py b/build.py
index ed018409d2..aaad6804cd 100755
--- a/build.py
+++ b/build.py
@@ -95,7 +95,7 @@ def Exit( self ):
   '7416fc62befa450e32f06ec2b503f2eec5f22f0b1cc12f7b8ee5112bf671cf11'
 )
 
-DEFAULT_RUST_TOOLCHAIN = 'nightly-2024-12-12'
+DEFAULT_RUST_TOOLCHAIN = 'nightly-2025-05-04'
 RUST_ANALYZER_DIR = p.join( DIR_OF_THIRD_PARTY, 'rust-analyzer' )
 
 BUILD_ERROR_MESSAGE = (