diff --git a/3rdparty/Makefile b/3rdparty/Makefile
index 05da6c28..69d726dc 100644
--- a/3rdparty/Makefile
+++ b/3rdparty/Makefile
@@ -7,7 +7,7 @@ SDLIMAGEURL = https://www.libsdl.org/projects/SDL_image/release/$(SDLIMAGEARCH)
 SDLTTF=SDL_ttf-2.0.11
 SDLTTFARCH=$(SDLTTF).tar.gz
 SDLTTFURL=https://www.libsdl.org/projects/SDL_ttf/release/$(SDLTTFARCH)
-LIBPNG = libpng-1.6.32
+LIBPNG = libpng-1.6.34
 LIBPNGARCH = $(LIBPNG).tar.gz
 LIBPNGURL = https://download.sourceforge.net/libpng/$(LIBPNGARCH)
 JPEGVER = 9c