diff --git a/02_1_Setting_Up_a_Bitcoin-Core_VPS_by_Hand.md b/02_1_Setting_Up_a_Bitcoin-Core_VPS_by_Hand.md
index 4cb0cde..c5052fe 100644
--- a/02_1_Setting_Up_a_Bitcoin-Core_VPS_by_Hand.md
+++ b/02_1_Setting_Up_a_Bitcoin-Core_VPS_by_Hand.md
@@ -37,7 +37,7 @@ You should now create your Bitcoin VPS. For an Unpruned Testnet setup, you shoul
 
 > **WARNING:** We've occasionally had machines run out of memory after running `bitcoind` for a few days when they only had 2G. Coming back, we find that `bitcoind` has stopped, leaving the message "Error: Out of memory. Terminating." in the `debug.log` file. This simply requires a restart of `bitcoind` and ten or fifteen minutes to get the blockchain resynced. Be generous with your memory if you want to avoid this annoyance, but don't worry too much if you hit it.
 
-We also suggest that you choose a Debian 8 image when you're creating your machine. These commands were all tested on Debian 8.7 (jessie). The further you get away from that, the less likely things will work as described here. So, another Debian is probably OK and maybe a different Ubuntu, but we've tried these out on a Mac, and we know that it's missing some commands like "wget". So, installer beware!
+We also suggest that you choose a Debian 9 image when you're creating your machine. These commands were all tested on Debian 9.5 (jessie). The further you get away from that, the less likely things will work as described here. So, another Debian is probably OK and maybe a different Ubuntu, but we've tried these out on a Mac, and we know that it's missing some commands like "wget". So, installer beware!
 
 Afterward, boot your VPS.