diff --git a/tests/integration/csv-import-contextless-glucose.test.ts b/tests/integration/csv-import-contextless-glucose.test.ts
index dad86ab24..9918bd2e0 100644
--- a/tests/integration/csv-import-contextless-glucose.test.ts
+++ b/tests/integration/csv-import-contextless-glucose.test.ts
@@ -18,6 +18,8 @@ import { beforeEach, describe, expect, it, vi } from "vitest";
 import { cookieJar } from "./mock-next-headers";
 import { getPrismaClient, truncateAllTables } from "./setup";
 
+import { MGDL_PER_MMOL } from "@/lib/glucose";
+
 const USER = "user-csv-glucose";
 
 vi.mock("next/headers", async () => {
@@ -111,7 +113,10 @@ describe("POST /api/import/csv — contextless glucose (real Postgres)", () => {
     expect(rows[0].glucoseContext).toBeNull();
     expect(rows[0].source).toBe("IMPORT");
     expect(rows[0].unit).toBe("mg/dL");
-    expect(rows[0].value).toBeCloseTo(95.4848, 3);
+    // Derived from the shared factor rather than pinned, for the same reason
+    // as below: a literal here re-pins whichever copy of the conversion the
+    // import path happened to use when it was written.
+    expect(rows[0].value).toBeCloseTo(5.3 * MGDL_PER_MMOL, 3);
     expect(rows[0].externalId).toBe("sensor-1");
     expect(rows[0].measuredAt.toISOString()).toBe("2024-04-03T02:15:00.000Z");
   });
@@ -141,7 +146,10 @@ describe("POST /api/import/csv — contextless glucose (real Postgres)", () => {
     });
     expect(rows).toHaveLength(1);
     expect(rows[0].glucoseContext).toBeNull();
-    expect(rows[0].value).toBeCloseTo(106.2944, 3);
+    // Derived, not pinned: this carried the import path's own copy of the
+    // conversion factor, so unifying the two conversions left it asserting a
+    // number the code no longer produces.
+    expect(rows[0].value).toBeCloseTo(5.9 * MGDL_PER_MMOL, 3);
   });
 
   it("keeps a named context, and still refuses one that is not in the enum", async () => {