diff --git a/minecraft-server/Chart.yaml b/minecraft-server/Chart.yaml
index 5e239e8..9b25732 100644
--- a/minecraft-server/Chart.yaml
+++ b/minecraft-server/Chart.yaml
@@ -8,8 +8,8 @@ type: application
 # The Java line of this chart version is chosen through appVersion, which is
 # the image tag: the chart is published once per line (java8 / java17 / java21)
 # and minecraft.version in values.yaml must match the line published here.
-version: 1.0.0+upjava17
-appVersion: "java17"
+version: 1.0.0+upjava21
+appVersion: "java21"
 
 maintainers:
   - name: jklein
diff --git a/minecraft-server/values.yaml b/minecraft-server/values.yaml
index 25e6f85..b94592e 100644
--- a/minecraft-server/values.yaml
+++ b/minecraft-server/values.yaml
@@ -184,8 +184,8 @@ minecraft:
   # This value must match the Java line of the chart version: the image tag
   # comes from .Chart.AppVersion, so the JVM is fixed per published chart
   # version. Java 8 runs Minecraft up to 1.16.5, 1.18-1.20.4 need Java 17 and
-  # 1.20.5+ need Java 21. This chart publishes appVersion "java17".
-  version: "1.20.1"
+  # 1.20.5+ need Java 21. This chart publishes appVersion "java21".
+  version: "1.21.1"
 
 # curseforge, ftb and curseforgeServerpack are mutually exclusive - enabling
 # more than one is rejected by the chart (before 1.0.0 it silently rendered a