diff --git a/.github/workflows/deploy-doc.yml b/.github/workflows/deploy-doc.yml
index 8a4d2736..f7a3a9fb 100644
--- a/.github/workflows/deploy-doc.yml
+++ b/.github/workflows/deploy-doc.yml
@@ -16,6 +16,7 @@ jobs:
         curl https://sh.rustup.rs -sSf | sh -s -- -y
         export PATH="$HOME/.cargo/bin:$PATH"
         rustup toolchain install nightly
+        rustup default nightly
         rustup target add wasm32-wasi
 
     - name: Build 🔧