diff --git a/platformio.ini b/platformio.ini
index 80d98bd0..f10b6215 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -63,7 +63,7 @@ lib_deps =
   SDCardManager=symlink://open-x4-sdk/libs/hardware/SDCardManager
   bblanchon/ArduinoJson @ 7.4.2
   ricmoo/QRCode @ 0.0.1
-  bitbank2/PNGdec @ ^1.0.0
+  bitbank2/PNGdec @ 1.1.6
   https://github.com/bitbank2/JPEGDEC.git#86282979224c8a32fd51e091ed5a35b0c699a52b
   links2004/WebSockets @ 2.7.3