diff --git a/.gitpod.yml b/.gitpod.yml
index 47718dc6..a9acb95c 100644
--- a/.gitpod.yml
+++ b/.gitpod.yml
@@ -2,7 +2,7 @@ tasks:
   - name: Preload
     before: |
       cargo install irust
-      rustup toolchain add nightly
+      rustup toolchain add nightly-2021-06-07
       cargo +nightly install racer
       cargo install cargo-edit cargo-asm
   - name: IRust