diff --git a/.all-contributorsrc b/.all-contributorsrc
index 9b38bca..d60d27e 100644
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -239,6 +239,15 @@
         "bug"
       ]
     },
+    {
+      "login": "Mehdisoley",
+      "name": "Mehdisoley",
+      "avatar_url": "https://avatars.githubusercontent.com/u/124178590?v=4",
+      "profile": "https://github.com/Mehdisoley",
+      "contributions": [
+        "bug"
+      ]
+    },
     {
       "login": "Uladzimir-dev",
       "name": "Uladzimir Matys",
diff --git a/README.md b/README.md
index 94fc2ac..391b883 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,7 @@ This project started at the [2018 Electrochemical Society (ECS) Hack Week in Sea
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/kevinsmia1939"><img src="https://avatars.githubusercontent.com/u/11407922?v=4?s=100" width="100px;" alt="Kavin Teenakul"/><br /><sub><b>Kavin Teenakul</b></sub></a><br /><a href="https://github.com/ECSHackWeek/impedance.py/commits?author=kevinsmia1939" title="Code">💻</a> <a href="https://github.com/ECSHackWeek/impedance.py/commits?author=kevinsmia1939" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/etrevis"><img src="https://avatars.githubusercontent.com/u/16451399?v=4?s=100" width="100px;" alt="Enrico"/><br /><sub><b>Enrico</b></sub></a><br /><a href="https://github.com/ECSHackWeek/impedance.py/commits?author=etrevis" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://ma-sadeghi.github.io"><img src="https://avatars.githubusercontent.com/u/14086031?v=4?s=100" width="100px;" alt="Amin Sadeghi"/><br /><sub><b>Amin Sadeghi</b></sub></a><br /><a href="https://github.com/ECSHackWeek/impedance.py/commits?author=ma-sadeghi" title="Code">💻</a> <a href="https://github.com/ECSHackWeek/impedance.py/issues?q=author%3Ama-sadeghi" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/Mehdisoley"><img src="https://avatars.githubusercontent.com/u/124178590?v=4?s=100" width="100px;" alt="Mehdisoley"/><br /><sub><b>Mehdisoley</b></sub></a><br /><a href="https://github.com/ECSHackWeek/impedance.py/issues?q=author%3AMehdisoley" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Uladzimir-dev"><img src="https://avatars.githubusercontent.com/u/68189726?v=4?s=100" width="100px;" alt="Uladzimir Matys"/><br /><sub><b>Uladzimir Matys</b></sub></a><br /><a href="https://github.com/ECSHackWeek/impedance.py/issues?q=author%3AUladzimir-dev" title="Bug reports">🐛</a></td>
     </tr>
   </tbody>