diff --git a/contrib/macdeploy/macdeployqtplus b/contrib/macdeploy/macdeployqtplus
index d8088aa123..524104398b 100755
--- a/contrib/macdeploy/macdeployqtplus
+++ b/contrib/macdeploy/macdeployqtplus
@@ -586,7 +586,8 @@ if len(config.fancy) == 1:
         sys.exit(1)
     
     try:
-        fancy = plistlib.readPlist(p)
+        with open(p, 'rb') as fp:
+            fancy = plistlib.load(fp, fmt=plistlib.FMT_XML)
     except:
         if verbose >= 1:
             sys.stderr.write("Error: Could not parse fancy disk image plist at \"{}\"\n".format(p))