diff --git a/recipes/cimg/all/conanfile.py b/recipes/cimg/all/conanfile.py
index b626bca664ae6..fa4663a48bbd0 100644
--- a/recipes/cimg/all/conanfile.py
+++ b/recipes/cimg/all/conanfile.py
@@ -70,7 +70,7 @@ def requirements(self):
         if self.options.enable_openexr:
             self.requires("openexr/3.2.1")
         if self.options.enable_png:
-            self.requires("libpng/1.6.40")
+            self.requires("libpng/[>=1.6 <2]")
         if self.options.enable_tiff:
             self.requires("libtiff/4.6.0")
         if self.options.enable_ffmpeg: