diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0784213293..19b437bf72 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
           - version: 17
             toolchain: false
           - version: 21
-            toolchain: false
+            toolchain: true
           - version: 22
             toolchain: true
           - version: 23