--- a/PyWCSTools/wcscon.py	2018-08-22 16:17:28.260143000 +0800
+++ b/PyWCSTools/wcscon.py	2022-08-28 17:57:19.369035437 +0800
@@ -10,16 +10,16 @@
 if version_info >= (2,6,0):
     def swig_import_helper():
         from os.path import dirname
-        import imp
+        import importlib
         fp = None
         try:
-            fp, pathname, description = imp.find_module('_wcscon', [dirname(__file__)])
+            fp, pathname, description = importlib.machinery.PathFinder().find_module('_wcs', [dirname(__file__)])
         except ImportError:
             import _wcscon
             return _wcscon
         if fp is not None:
             try:
-                _mod = imp.load_module('_wcscon', fp, pathname, description)
+                _mod = importlib.machinery.SourceFileLoader.import_module('_wcs', fp, pathname, description)
             finally:
                 fp.close()
             return _mod
--- a/PyWCSTools/wcs.py	2018-08-22 16:17:28.260143000 +0800
+++ b/PyWCSTools/wcs.py	2022-08-28 17:55:32.203953184 +0800
@@ -10,16 +10,16 @@
 if version_info >= (2,6,0):
     def swig_import_helper():
         from os.path import dirname
-        import imp
+        import importlib
         fp = None
         try:
-            fp, pathname, description = imp.find_module('_wcs', [dirname(__file__)])
+            fp, pathname, description = importlib.machinery.PathFinder().find_module('_wcs', [dirname(__file__)])
         except ImportError:
             import _wcs
             return _wcs
         if fp is not None:
             try:
-                _mod = imp.load_module('_wcs', fp, pathname, description)
+                _mod = importlib.machinery.SourceFileLoader.import_module('_wcs', fp, pathname, description)
             finally:
                 fp.close()
             return _mod