diff --git a/README.md b/README.md
index 3f7ab9e..2de3e9e 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Telegram Bot for re-encoding media
 ## Requirements
 
  - Telegram bot username and token, [@BotFather](https://t.me/BotFather)
- - JRE 16+ or JDK 16+ (for build)
+ - JRE 17+ or JDK 17+ (for build)
  - `ffmpeg` must be installed and available in `PATH`.
  - `yt-dlp` for `/dl` command.
 
@@ -25,6 +25,7 @@ Telegram Bot for re-encoding media
 # Config
 cp ffmpegbot.yaml.template ffmpegbot.yaml
 vim ffmpegbot.yaml
+mkdir {input,output}
 # Run
 java -jar ./build/libs/ffmpegbot-1.0-SNAPSHOT-all.jar
 ```
diff --git a/build.gradle b/build.gradle
index a7852d0..53c4fd9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,6 +8,8 @@ mainClassName = 'com.annimon.ffmpegbot.Main'
 group 'com.annimon'
 version '1.0-SNAPSHOT'
 
+sourceCompatibility = 17
+targetCompatibility = 17
 compileJava.options.encoding = 'UTF-8'
 
 tasks.withType(JavaCompile) {