diff --git a/CHANGELOG.md b/CHANGELOG.md
index e5a18d97..14d9643d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Query the GitHub API once instead of twice when resolving the latest Xtensa Rust version
 
 ### Changed
+- Revert default GCC / Crosstools version to [`esp-15.2.0_20250920`](https://github.com/espressif/crosstool-NG/releases/tag/esp-15.2.0_20250920) (#602)
 
 ### Removed
 
diff --git a/src/toolchain/gcc.rs b/src/toolchain/gcc.rs
index 48ff4ce3..069b0f0d 100644
--- a/src/toolchain/gcc.rs
+++ b/src/toolchain/gcc.rs
@@ -21,7 +21,7 @@ use std::path::{Path, PathBuf};
 use tokio::fs::remove_dir_all;
 
 const DEFAULT_GCC_REPOSITORY: &str = "https://github.com/espressif/crosstool-NG/releases/download";
-const DEFAULT_GCC_RELEASE: &str = "16.2.0_20260914";
+const DEFAULT_GCC_RELEASE: &str = "15.2.0_20250920";
 pub const RISCV_GCC: &str = "riscv32-esp-elf";
 pub const XTENSA_GCC: &str = "xtensa-esp-elf";