diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3d489c40..93ce0367 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ env:
   CARGO_TERM_COLOR: always
   CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
   # Keep in sync with version in `rust-toolchain.toml` and `xtask/src/ci.rs`
-  NIGHTLY: nightly-2024-05-09
+  NIGHTLY: nightly-2024-07-29
 
 on:
   push:
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 647f9a1c..a2ab784c 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
 # Keep in sync with version in `xtask/src/ci.rs` and `.github/workflows/ci.yml`
-channel = "nightly-2024-05-09"
+channel = "nightly-2024-07-29"
 components = ["rustfmt", "clippy"]
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index c917863d..057bc5e4 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -15,7 +15,7 @@ use serde::Deserialize;
 use serde_json::from_str as from_json_str;
 
 // Keep in sync with version in `rust-toolchain.toml` and `.github/workflows/ci.yml`
-const NIGHTLY: &str = "nightly-2024-05-09";
+const NIGHTLY: &str = "nightly-2024-07-29";
 
 mod cargo;
 mod ci;