diff --git a/2023-07-17-icfca_kassel/FCA_and_DraCor.ipynb b/2023-07-17-icfca_kassel/FCA_and_DraCor.ipynb
index c34a69e..10eab9e 100644
--- a/2023-07-17-icfca_kassel/FCA_and_DraCor.ipynb
+++ b/2023-07-17-icfca_kassel/FCA_and_DraCor.ipynb
@@ -149,7 +149,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "841a6438",
+   "id": "efe781ca",
    "metadata": {},
    "source": [
     "- registration form had a checkbox \"I'd like to give a talk\"\n",
@@ -296,7 +296,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "c779d3c0",
+   "id": "1445c909",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -333,7 +333,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7c2836aa",
+   "id": "ed4df325",
    "metadata": {},
    "source": [
     "<img alt=\"@DIHMA.LAB\" src=\"https://slides.igada.de/2023-07-17-icfca_kassel/dihmalab2.jpg\" style=\"width: 90%\"/>\n",
diff --git a/2023-07-17-icfca_kassel/dracor.png b/2023-07-17-icfca_kassel/dracor.png
index 69faaf1..cc1b74f 100644
Binary files a/2023-07-17-icfca_kassel/dracor.png and b/2023-07-17-icfca_kassel/dracor.png differ