diff --git a/json_script.ipynb b/json_script.ipynb
index 19499fc..b255428 100644
--- a/json_script.ipynb
+++ b/json_script.ipynb
@@ -22,7 +22,7 @@
     "              '\\n',\n",
     "              '![Logo 2](https://git.wmi.amu.edu.pl/AITech/Szablon/raw/branch/master/Logotyp_AITech2.jpg)']\n",
     "    zerodict={'cell_type': 'markdown','metadata': {'collapsed': False},'source': zerocell}\n",
-    "    with open(filen, 'r+') as f:\n",
+    "    with open(filen, 'r+',encoding='utf-8') as f:\n",
     "        ll=json.load(f)\n",
     "        ll[\"metadata\"][\"author\"]=author\n",
     "        ll[\"metadata\"][\"email\"]=email\n",
@@ -107,4 +107,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 4
-}
\ No newline at end of file
+}