diff --git a/burn-book/src/SUMMARY.md b/burn-book/src/SUMMARY.md
index 7bf98af659..0c71d10a45 100644
--- a/burn-book/src/SUMMARY.md
+++ b/burn-book/src/SUMMARY.md
@@ -33,3 +33,4 @@
   - [Custom Optimizer]()
   - [WebAssembly]()
   - [No-Std](./advanced/no-std.md)
+  - [Nightly](./advanced/nightly.md)
diff --git a/burn-book/src/advanced/nightly.md b/burn-book/src/advanced/nightly.md
new file mode 100644
index 0000000000..9b2287f03b
--- /dev/null
+++ b/burn-book/src/advanced/nightly.md
@@ -0,0 +1,17 @@
+# Nightly
+
+Burn has nightly support by default. However, one may meet this error during compilation:
+
+```
+error[E0658]: use of unstable library feature `allocator_api`
+```
+
+To solve it, the `hashbrown` crate with version higher than `0.15` needs to be involved explicitly in `Cargo.toml`:
+
+```toml
+hashbrown = { version = "0.15", features = ["nightly"] }
+```
+
+even it's not required by your code.
+
+See [here](https://github.com/rust-lang/hashbrown/issues/564) for track the issue and [here](https://github.com/zakarumych/allocator-api2/issues/19) for the status.
\ No newline at end of file