diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3a63dc0..046097f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,7 +12,7 @@ jobs:
           sudo apt-get -qq update
           sudo apt-get install -y make
 
-      - uses: diku-dk/install-mlton@v1.0.0
+      - uses: diku-dk/install-mlton@v1
       - uses: diku-dk/install-mlkit@v1.0.1
 
       - name: Check