diff --git a/examples/08_combined_fit_example.ipynb b/examples/08_combined_fit_example.ipynb
index a492c674..43ec7097 100644
--- a/examples/08_combined_fit_example.ipynb
+++ b/examples/08_combined_fit_example.ipynb
@@ -9,7 +9,10 @@
    "source": [
     "import pyerrors as pe\n",
     "import numpy as np\n",
-    "import matplotlib.pyplot as plt"
+    "import matplotlib.pyplot as plt\n",
+    "from packaging import version\n",
+    "if version.parse(pe.__version__) < version.parse(\"2.6.0\"):\n",
+    "    raise Exception(f\"v2.6.0 or newer is required for this example, you are using {pe.__version__}\")"
    ]
   },
   {