diff --git a/README.md b/README.md
index a854df8..abe4797 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,13 @@ A comic reader that support reading local and network comics.
 - View comments, tags, and other information of comics if the source supports
 - Login to comment, rate, and other operations if the source supports
 
+## Build from source
+
+1. Clone the repository
+2. Install flutter, see [flutter.dev](https://flutter.dev/docs/get-started/install)
+3. Install rust, see [rustup.rs](https://rustup.rs/)
+4. Build for your platform: e.g. `flutter build apk`
+
 ## Create a new comic source
 
 See [venera-configs](https://github.com/venera-app/venera-configs)
diff --git a/pubspec.yaml b/pubspec.yaml
index 29b2716..7f14035 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -57,6 +57,7 @@ dependencies:
   lodepng_flutter:
     git:
       url: https://github.com/venera-app/lodepng_flutter
+      ref: d1c96cd6503103b3270dfe2f320d4a1c93780f53
   rhttp: 0.9.1
   dio_compatibility_layer: ^0.1.0