diff --git a/.github/workflows/update-os.yml b/.github/workflows/update-os.yml
index af658d8..8410fd2 100644
--- a/.github/workflows/update-os.yml
+++ b/.github/workflows/update-os.yml
@@ -65,7 +65,7 @@ jobs:
 
             # increase swap-size
             sudo dphys-swapfile swapoff
-            sudo sed -i -E '/^CONF_SWAPSIZE=/s/=.*/=256/' /etc/dphys-swapfile
+            sudo sed -i -E '/^CONF_SWAPSIZE=/s/=.*/=512/' /etc/dphys-swapfile
             sudo dphys-swapfile setup
             sudo dphys-swapfile swapon