diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 062876279..21a099966 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -53,7 +53,7 @@ jobs:
       run: |
         cargo update --package=half --precise=2.2.1
         cargo update --package=flate2 --precise=1.0.35
-        cargo update --package=syn --precise=2.0.106
+        cargo update --package=syn@2 --precise=2.0.106
         cargo update --package=textwrap --precise=0.16.1
         cargo update --package=parking_lot --precise=0.12.4
         cargo update --package=parking_lot_core --precise=0.9.11
@@ -591,7 +591,7 @@ jobs:
       run: |
         cargo update --package=half --precise=2.2.1
         cargo update --package=flate2 --precise=1.0.35
-        cargo update --package=syn --precise=2.0.106
+        cargo update --package=syn@2 --precise=2.0.106
         cargo update --package=textwrap --precise=0.16.1
         cargo update --package=parking_lot --precise=0.12.4
         cargo update --package=parking_lot_core --precise=0.9.11