diff --git a/.github/workflows/train-spread-predictor.yaml b/.github/workflows/train-spread-predictor.yaml
index 7bf6696..76e96bb 100644
--- a/.github/workflows/train-spread-predictor.yaml
+++ b/.github/workflows/train-spread-predictor.yaml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     steps:
       - name: Checkout repository