diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 2734511c53..aea723b794 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -68,19 +68,6 @@ version = "1.0.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4361135be9122e0870de935d7c439aef945b9f9ddd4199a553b5270b49c82a27"
 
-[[package]]
-name = "apng-encoder"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c7f9987a57a1c655fde73fcda60bde986fa9410ab9d2912d894c83eb2eadb92"
-dependencies = [
- "byteorder",
- "enum-iterator",
- "enum-iterator-derive",
- "failure",
- "flate2",
-]
-
 [[package]]
 name = "approx"
 version = "0.5.1"
@@ -726,26 +713,6 @@ version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a357d28ed41a50f9c765dbfe56cbc04a64e53e5fc58ba79fbc34c10ef3df831f"
 
-[[package]]
-name = "enum-iterator"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fdb0aac423d2d59cc8b22de1ebd0db7f8d07382b8189945c89ab882a1c659b5"
-dependencies = [
- "enum-iterator-derive",
-]
-
-[[package]]
-name = "enum-iterator-derive"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1df9d0cef4b051baf3ef7f9b1674273dc78cd56e02cba60fa187f9c0ff4ff5e0"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "environmental"
 version = "1.1.3"
@@ -762,28 +729,6 @@ dependencies = [
  "version_check",
 ]
 
-[[package]]
-name = "failure"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d32e9bd16cc02eae7db7ef620b392808b89f6a5e16bb3497d159c6b92a0f4f86"
-dependencies = [
- "backtrace",
- "failure_derive",
-]
-
-[[package]]
-name = "failure_derive"
-version = "0.1.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
- "synstructure",
-]
-
 [[package]]
 name = "fake-simd"
 version = "0.1.2"
@@ -821,18 +766,6 @@ dependencies = [
  "static_assertions",
 ]
 
-[[package]]
-name = "flate2"
-version = "1.0.22"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e6988e897c1c9c485f43b47a529cef42fde0547f9d8d41a7062518f1d8fc53f"
-dependencies = [
- "cfg-if",
- "crc32fast",
- "libc",
- "miniz_oxide 0.4.4",
-]
-
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -2164,9 +2097,9 @@ dependencies = [
 name = "qrcode_rtx"
 version = "0.1.0"
 dependencies = [
- "apng-encoder",
  "constants",
  "hex",
+ "png 0.17.5",
  "qrcode_static",
  "qrcodegen",
  "raptorq",
diff --git a/rust/qrcode_rtx/Cargo.toml b/rust/qrcode_rtx/Cargo.toml
index 58a7129a5f..67be0c698a 100644
--- a/rust/qrcode_rtx/Cargo.toml
+++ b/rust/qrcode_rtx/Cargo.toml
@@ -10,7 +10,7 @@ edition = "2018"
 hex = "0.4.3"
 raptorq = "1.6.4"
 qrcodegen = "1.6.0"
-apng-encoder = "0.3.0"
+png = "0.17.5"
 constants = {path = "../constants"}
 qrcode_static = {path = "../qrcode_static"}
 
diff --git a/rust/qrcode_rtx/src/lib.rs b/rust/qrcode_rtx/src/lib.rs
index f54fb62037..9b9ab9ce17 100644
--- a/rust/qrcode_rtx/src/lib.rs
+++ b/rust/qrcode_rtx/src/lib.rs
@@ -56,28 +56,22 @@ fn make_apng(data: Vec<QrCode>, output_name: &str) -> Result<(), Box<dyn std::er
     let mut output_file = fs::File::create(output_name)?;
     let frames_count: u32 = data.len() as u32;
     let border_size = BORDER * SCALING;
-    let size: u32 = (data[0].size() as u32) * (SCALING as u32) + 2 * border_size as u32; // size is always positive and small
-    let apng_meta = apng_encoder::Meta {
-        width: size,
-        height: size,
-        color: apng_encoder::Color::Grayscale(8),
-        frames: frames_count,
-        plays: None,
-    };
-    let apng_frame = apng_encoder::Frame {
-        delay: Some(apng_encoder::Delay::new(FPS_NOM, FPS_DEN)),
-        ..Default::default()
-    };
-    let mut apng_encoder = match apng_encoder::Encoder::create(&mut output_file, apng_meta) {
-        Ok(a) => a,
-        Err(e) => return Err(Box::from(format!("Apng encoder error. {}", e))),
-    };
 
+    // size is always positive and small
+    let size: u32 = (data[0].size() as u32) * (SCALING as u32) + 2 * border_size as u32;
+    let mut encoder = png::Encoder::new(&mut output_file, size, size);
+
+    encoder.set_color(png::ColorType::Grayscale);
+    encoder.set_animated(frames_count, 0)?;
+    encoder.set_frame_delay(FPS_NOM, FPS_DEN)?;
+    encoder.set_depth(png::BitDepth::Eight);
+
+    let mut writer = encoder.write_header()?;
     // making actual apng
     // qr.get_module(x,y) = false corresponds to back color (white by default)
     // qr.get_module(x,y) = true corresponds to main color (black by default)
     for qr in data.iter() {
-        let mut buffer: Vec<u8> = Vec::new();
+        let mut buffer: Vec<u8> = Vec::with_capacity((size * size) as usize);
         for y in 0..size {
             for x in 0..size {
                 if qr.get_module(x as i32 / SCALING - BORDER, y as i32 / SCALING - BORDER) {
@@ -87,15 +81,10 @@ fn make_apng(data: Vec<QrCode>, output_name: &str) -> Result<(), Box<dyn std::er
                 }
             }
         }
-        match apng_encoder.write_frame(&buffer, Some(&apng_frame), None, None) {
-            Ok(a) => a,
-            Err(e) => return Err(Box::from(format!("Apng encoder error. {}", e))),
-        }
-    }
-    match apng_encoder.finish() {
-        Ok(a) => a,
-        Err(e) => return Err(Box::from(format!("Apng encoder error. {}", e))),
+        writer.write_image_data(&buffer)?;
     }
+    writer.finish()?;
+
     Ok(())
 }