diff --git a/.changeset/fresh-zebras-hug.md b/.changeset/fresh-zebras-hug.md
new file mode 100644
index 0000000000..c295dc2287
--- /dev/null
+++ b/.changeset/fresh-zebras-hug.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-kafka-backend': patch
+---
+
+Update Kafka configuration types
diff --git a/plugins/kafka-backend/config.d.ts b/plugins/kafka-backend/config.d.ts
index ee29560809..3e7c196bd7 100644
--- a/plugins/kafka-backend/config.d.ts
+++ b/plugins/kafka-backend/config.d.ts
@@ -31,10 +31,11 @@ export interface Config {
        */
       ssl?:
         | {
-            ca: string[];
+            ca?: string[];
             /** @visibility secret */
-            key: string;
-            cert: string;
+            key?: string;
+            cert?: string;
+            rejectUnauthorized?: boolean;
           }
         | boolean;
       /**