diff --git a/Pipfile.lock b/Pipfile.lock
index 8f1ef18..d2af83f 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -49,10 +49,10 @@
         },
         "executing": {
             "hashes": [
-                "sha256:c6554e21c6b060590a6d3be4b82fb78f8f0194d809de5ea7df1c093763311501",
-                "sha256:d1eef132db1b83649a3905ca6dd8897f71ac6f8cac79a7e58a1a09cf137546c9"
+                "sha256:4ce4d6082d99361c0231fc31ac1a0f56979363cc6819de0b1410784f99e49105",
+                "sha256:ea278e2cf90cbbacd24f1080dd1f0ac25b71b2e21f50ab439b7ba45dd3195587"
             ],
-            "version": "==0.8.3"
+            "version": "==0.9.1"
         },
         "ipython": {
             "hashes": [