diff --git a/learn/S-two-book/air-development/writing-a-simple-air/hello-world.mdx b/learn/S-two-book/air-development/writing-a-simple-air/hello-world.mdx
index 8887353f79..ebfadc4955 100644
--- a/learn/S-two-book/air-development/writing-a-simple-air/hello-world.mdx
+++ b/learn/S-two-book/air-development/writing-a-simple-air/hello-world.mdx
@@ -12,7 +12,7 @@ $ cargo new stwo-example
 We need to specify the nightly Rust version to use S-two.
 
 ```bash
-$ echo -e "[toolchain]\nchannel = \"nightly-2025-01-02\"" > rust-toolchain.toml
+$ echo -e "[toolchain]\nchannel = \"nightly-2025-07-14\"" > rust-toolchain.toml
 ```
 
 Now let's edit the `Cargo.toml` file as follows: