diff --git a/README.md b/README.md
index 054112f2..94d50552 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Learn more about this app in the [blog post](https://blog.joinmastodon.org/2022/
 
 ## Building
 
-As this app is using Java 15 features, you need JDK 15 or newer to build it. Other than that, everything is pretty standard. You can either import the project into Android Studio and build it from there, or run the following command in the project directory:
+As this app is using Java 17 features, you need JDK 17 or newer to build it. Other than that, everything is pretty standard. You can either import the project into Android Studio and build it from there, or run the following command in the project directory:
 
 ```
 ./gradlew assembleRelease