diff --git a/install-zfs.sh b/install-zfs.sh
index 84c09e8..7a19c6b 100755
--- a/install-zfs.sh
+++ b/install-zfs.sh
@@ -1062,7 +1062,7 @@ function create_pools {
 
   set +x
   if [[ -n $v_passphrase ]]; then
-    encryption_options=(-O "encryption=on" -O "keylocation=prompt" -O "keyformat=passphrase")
+    encryption_options=(-O "encryption=aes-256-gcm" -O "keylocation=prompt" -O "keyformat=passphrase")
   fi
   set -x