diff --git a/Cargo.lock b/Cargo.lock
index 999125118f8f..de044ea98447 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -481,9 +481,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.56"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
+checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
 dependencies = [
  "unicode-ident",
 ]
diff --git a/rust-toolchain b/rust-toolchain
index 03b909cd80c7..33ff8b03da2a 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2023-06-19"
+channel = "nightly-2023-07-01"
 components = ["llvm-tools", "rustc-dev"]