diff --git a/minecraft/compose.yaml b/minecraft/compose.yaml
index 6088cb9..0cc2cd1 100644
--- a/minecraft/compose.yaml
+++ b/minecraft/compose.yaml
@@ -12,7 +12,7 @@ services:
       - 25565:25565
     environment:
       - TYPE=VELOCITY
-      - MINECRAFT_VERSION=1.21.6
+      - MINECRAFT_VERSION=1.21.5
 
   minecraft_server_mc:
     image: itzg/minecraft-server
diff --git a/minecraft/server.env b/minecraft/server.env
index 58241ec..d036f2e 100644
--- a/minecraft/server.env
+++ b/minecraft/server.env
@@ -3,7 +3,7 @@ TZ=Australia/Perth
 TYPE=PAPER
 RCON_PASSWORD=${RCON_PASSWORD}
 # PAPER_CHANNEL=experimental
-VERSION=1.21.6
+VERSION=1.21.5
 ENABLE_ROLLING_LOGS=true
 LOG_TIMESTAMP=true
 OVERRIDE_ICON=TRUE