diff --git a/conferences/2025/data.json b/conferences/2025/data.json
index 3ce30d38f..29f704e60 100644
--- a/conferences/2025/data.json
+++ b/conferences/2025/data.json
@@ -108,6 +108,15 @@
     "locales": "EN",
     "offersSignLanguageOrCC": true
   },
+  {
+    "name": "heise devSec: KI und Security",
+    "url": "https://www.heise-devsec.de/ki.php",
+    "startDate": "2025-04-08",
+    "endDate": "2025-04-08",
+    "online": true,
+    "locales": "DE",
+    "cocUrl": "https://www.heise-devsec.de/code_of_conduct.php?source=0"
+  },
   {
     "name": "11th Data Management ThinkLab",
     "url": "https://thinklinkers.com/events/workshops/data_management_conference_event_europe_2025",
diff --git a/conferences/2025/security.json b/conferences/2025/security.json
index 53c1521ef..d1a16be2e 100644
--- a/conferences/2025/security.json
+++ b/conferences/2025/security.json
@@ -72,6 +72,15 @@
     "cfpUrl": "https://www.oc3.dev/call-for-submissions",
     "cfpEndDate": "2024-12-13"
   },
+  {
+    "name": "heise devSec: KI und Security",
+    "url": "https://www.heise-devsec.de/ki.php",
+    "startDate": "2025-04-08",
+    "endDate": "2025-04-08",
+    "online": true,
+    "locales": "DE",
+    "cocUrl": "https://www.heise-devsec.de/code_of_conduct.php?source=0"
+  },
   {
     "name": "Into The Box",
     "url": "https://www.intothebox.org",