diff --git a/examples/mkdocs/Pipfile.lock b/examples/mkdocs/Pipfile.lock
index 64b6d082..78117f15 100644
--- a/examples/mkdocs/Pipfile.lock
+++ b/examples/mkdocs/Pipfile.lock
@@ -145,11 +145,12 @@
         },
         "idna": {
             "hashes": [
-                "sha256:814f528e8dead7d329833b91c5faa87d60bf71824cd12a7530b5526063d02cb4",
-                "sha256:90b77e79eaa3eba6de819a0c442c0b4ceefc341a7a2ab77d7562bf49f425c5c2"
+                "sha256:028ff3aadf0609c1fd278d8ea3089299412a7a8b9bd005dd08b9f8285bcb5cfc",
+                "sha256:82fee1fc78add43492d3a1898bfa6d8a904cc97d8427f683ed8e798d07761aa0"
             ],
+            "index": "pypi",
             "markers": "python_version >= '3.5'",
-            "version": "==3.4"
+            "version": "==3.7"
         },
         "importlib-metadata": {
             "hashes": [