diff --git a/demo/03629_hentogsend.ipynb b/demo/03629_hentogsend.ipynb
index 109edde..9ca568f 100644
--- a/demo/03629_hentogsend.ipynb
+++ b/demo/03629_hentogsend.ipynb
@@ -14,7 +14,7 @@
     "from statbank import StatbankClient\n",
     "\n",
     "fileclient = dp.FileClient()\n",
-    "statclient = StatbankClient(\"LAST360\")"
+    "statclient = StatbankClient()"
    ]
   },
   {
diff --git a/demo/214_mnr_hentogsend.ipynb b/demo/214_mnr_hentogsend.ipynb
index 216b3d4..384b1df 100644
--- a/demo/214_mnr_hentogsend.ipynb
+++ b/demo/214_mnr_hentogsend.ipynb
@@ -15,7 +15,7 @@
     "from io import StringIO\n",
     "\n",
     "fileclient = dp.FileClient()\n",
-    "statclient = StatbankClient(\"LAST413\")"
+    "statclient = StatbankClient()"
    ]
   },
   {
diff --git a/demo/312_stillnaring_csv.ipynb b/demo/312_stillnaring_csv.ipynb
index 1f3d4b5..1914a27 100644
--- a/demo/312_stillnaring_csv.ipynb
+++ b/demo/312_stillnaring_csv.ipynb
@@ -22,7 +22,7 @@
    },
    "outputs": [],
    "source": [
-    "client=StatbankClient(\"Last312\")"
+    "client = StatbankClient()"
    ]
   },
   {
diff --git a/demo/312_stillnaring_fellesdaplalagring.ipynb b/demo/312_stillnaring_fellesdaplalagring.ipynb
index 98a0ab9..344d926 100644
--- a/demo/312_stillnaring_fellesdaplalagring.ipynb
+++ b/demo/312_stillnaring_fellesdaplalagring.ipynb
@@ -24,7 +24,7 @@
    "outputs": [],
    "source": [
     "fileclient = dp.FileClient()\n",
-    "statclient = StatbankClient(\"LAST312\")"
+    "statclient = StatbankClient()"
    ]
   },
   {
diff --git a/demo/check_env_changes.ipynb b/demo/check_env_changes.ipynb
deleted file mode 100644
index f893dae..0000000
--- a/demo/check_env_changes.ipynb
+++ /dev/null
@@ -1,41 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "354dbc82-4a4d-41e4-a89a-a58d70fc709b",
-   "metadata": {
-    "tags": []
-   },
-   "outputs": [],
-   "source": [
-    "from statbank.auth import StatbankAuth"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "b73970a3-b22f-4ab5-a3bd-635d692b07b2",
-   "metadata": {
-    "tags": []
-   },
-   "outputs": [],
-   "source": [
-    "StatbankAuth()._build_user_agent()"
-   ]
-  }
- ],
- "metadata": {
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython"
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}