diff --git a/kubernetes_asyncio/config/kube_config.py b/kubernetes_asyncio/config/kube_config.py
index 909077767..d8d05d6b1 100644
--- a/kubernetes_asyncio/config/kube_config.py
+++ b/kubernetes_asyncio/config/kube_config.py
@@ -102,7 +102,7 @@ def as_file(self):
                 else:
                     content = self._data
                 self._file = _create_temp_file_with_content(
-                    base64.decodestring(content))
+                    base64.standard_b64decode(content))
             else:
                 self._file = _create_temp_file_with_content(self._data)
         if self._file and not os.path.isfile(self._file):
@@ -117,7 +117,7 @@ def as_data(self):
             with open(self._file) as f:
                 if self._base64_file_content:
                     self._data = bytes.decode(
-                        base64.encodestring(str.encode(f.read())))
+                        base64.standard_b64encode(str.encode(f.read())))
                 else:
                     self._data = f.read()
         return self._data
diff --git a/kubernetes_asyncio/config/kube_config_test.py b/kubernetes_asyncio/config/kube_config_test.py
index 8ae40e179..8f0cc63f9 100644
--- a/kubernetes_asyncio/config/kube_config_test.py
+++ b/kubernetes_asyncio/config/kube_config_test.py
@@ -36,7 +36,7 @@
 
 
 def _base64(string):
-    return base64.encodestring(string.encode()).decode()
+    return base64.standard_b64encode(string.encode()).decode()
 
 
 def _unpadded_base64(string):