diff --git a/Dockerfile b/Dockerfile
index 0b8fddf..1fbee56 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/eclipse-temurin:17
+FROM docker.io/eclipse-temurin:21
 RUN apt-get update \
     && apt-get install -y ffmpeg \
     && apt-get clean \
diff --git a/build.gradle.kts b/build.gradle.kts
index 364d429..1876406 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -12,7 +12,7 @@ version = "0.0.1-SNAPSHOT"
 
 java {
     toolchain {
-        languageVersion = JavaLanguageVersion.of(17)
+        languageVersion = JavaLanguageVersion.of(21)
     }
 }
 
diff --git a/mise.toml b/mise.toml
index 4ad6162..fdc41c9 100644
--- a/mise.toml
+++ b/mise.toml
@@ -1,5 +1,5 @@
 [tools]
-java = "temurin-17"
+java = "temurin-21"
 
 [tasks.release]
 description = 'Build and push docker image'