diff --git a/README.md b/README.md
index 4608ede..2afdd89 100644
--- a/README.md
+++ b/README.md
@@ -133,7 +133,7 @@ sudo dpkg -i wiringpi-latest.deb
 
 # If you are using the Raspberry Pi Zero models, you may need to increase the swapfile size to be able to install Inkycal:
 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
 ```