diff --git a/backup.sh b/backup.sh
index 72dfc0e..0fa55ce 100755
--- a/backup.sh
+++ b/backup.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 zip -FS -r data.zip \
-    minecraft/world \
+    minecraft/world* \
     minecraft_bedrock/worlds \
     terraria/worlds \
     terraria/password.txt \
diff --git a/minecraft/Dockerfile b/minecraft/Dockerfile
index 54d40ba..92979cd 100644
--- a/minecraft/Dockerfile
+++ b/minecraft/Dockerfile
@@ -10,8 +10,8 @@ WORKDIR /home/ubuntu
 RUN wget -O rcon-cli.tar.gz https://github.com/itzg/rcon-cli/releases/download/1.6.9/rcon-cli_1.6.9_linux_amd64.tar.gz
 RUN tar xvf rcon-cli.tar.gz && rm rcon-cli.tar.gz
 
-# from https://www.minecraft.net/en-us/download/server (currently 1.21)
-RUN wget https://piston-data.mojang.com/v1/objects/59353fb40c36d304f2035d51e7d6e6baa98dc05c/server.jar
+# from https://www.minecraft.net/en-us/download/server (currently 1.21.2)
+RUN wget https://piston-data.mojang.com/v1/objects/7bf95409b0d9b5388bfea3704ec92012d273c14c/server.jar
 
 COPY --chown=ubuntu:ubuntu eula.txt ./
 COPY --chown=ubuntu:ubuntu entry.sh ./
diff --git a/minecraft/server.properties b/minecraft/server.properties
index 4caf691..403d4e9 100644
--- a/minecraft/server.properties
+++ b/minecraft/server.properties
@@ -16,7 +16,7 @@ function-permission-level=2
 gamemode=spectator
 generate-structures=true
 generator-settings={}
-hardcore=false
+hardcore=true
 hide-online-players=false
 initial-disabled-packs=
 initial-enabled-packs=vanilla