diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d51dc346eb0..4e9aa17667d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -299,10 +299,11 @@ jobs:
       - name: Checkout sources
         uses: actions/checkout@v3
 
-      - name: Install toolchain
+      - name: Install nightly toolchain
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
+          toolchain: nightly
 
       - name: Run cargo doc
         uses: actions-rs/cargo@v1