diff --git a/_conferences/kotlin-dev-day-2025.md b/_conferences/kotlin-dev-day-2025.md
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+---
+name: "Kotlin Dev Day"
+website: https://kotlindevday.com/
+location: Amsterdam, Netherlands
+
+date_start: 2025-11-27
+date_end:   2025-11-27
+
+cfp:
+  start: 2025-06-02
+  end:   2025-07-31
+  site:  https://sessionize.com/kotlin-dev-day-amsterdam
+---