diff --git a/.changeset/stupid-ants-change.md b/.changeset/stupid-ants-change.md
new file mode 100644
index 0000000000..c78c5e4250
--- /dev/null
+++ b/.changeset/stupid-ants-change.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-tech-insights-backend-module-jsonfc': patch
+---
+
+Handle extracting facts from 'not' conditions too
diff --git a/plugins/tech-insights-backend-module-jsonfc/src/service/JsonRulesEngineFactChecker.ts b/plugins/tech-insights-backend-module-jsonfc/src/service/JsonRulesEngineFactChecker.ts
index 721c9b3c62..6c1c559fc4 100644
--- a/plugins/tech-insights-backend-module-jsonfc/src/service/JsonRulesEngineFactChecker.ts
+++ b/plugins/tech-insights-backend-module-jsonfc/src/service/JsonRulesEngineFactChecker.ts
@@ -222,6 +222,12 @@ export class JsonRulesEngineFactChecker
           this.retrieveIndividualFactReferences(con),
         ),
       );
+    } else if ('not' in condition) {
+      results = results.concat(
+        this.retrieveIndividualFactReferences(condition.not),
+      );
+    } else if ('condition' in condition) {
+      // ignore the ConditionReference type
     } else {
       results.push(condition.fact);
     }