diff --git a/daemon/web/src/lib/analysis.svelte.spec.ts b/daemon/web/src/lib/analysis.svelte.spec.ts
index 67c1ac7..fbaf479 100644
--- a/daemon/web/src/lib/analysis.svelte.spec.ts
+++ b/daemon/web/src/lib/analysis.svelte.spec.ts
@@ -77,12 +77,12 @@ describe('analysis report parsing', () => {
             {
                 name: 'Analyzer 1',
                 description: 'A first analyzer',
-                version: 1,
+                version: 0,
             },
             {
                 name: 'Analyzer 2',
                 description: 'A second analyzer',
-                version: 1,
+                version: 0,
             },
         ]);
         expect(report.rows).toHaveLength(2);
diff --git a/daemon/web/src/lib/analysis.svelte.ts b/daemon/web/src/lib/analysis.svelte.ts
index 6ea8b22..0dae3a5 100644
--- a/daemon/web/src/lib/analysis.svelte.ts
+++ b/daemon/web/src/lib/analysis.svelte.ts
@@ -23,8 +23,11 @@ export class ReportMetadata {
         this.rayhunter = ndjson.rayhunter;
         if (ndjson.report_version === undefined) {
             this.report_version = 1;
+            // we consider our legacy (unversioned) heuristics to be v0 --
+            // this'll let us clearly differentiate some known false-positive
+            // results from the pre-versioned era from v1 heuristics
             this.analyzers.forEach((analyzer) => {
-                analyzer.version = 1;
+                analyzer.version = 0;
             });
         } else {
             this.report_version = ndjson.report_version;