diff --git a/src/lib/adapters/b2/package-store.ts b/src/lib/adapters/b2/package-store.ts
index 12e88c4f..eba8a97e 100644
--- a/src/lib/adapters/b2/package-store.ts
+++ b/src/lib/adapters/b2/package-store.ts
@@ -81,6 +81,8 @@ export function b2ObjectStore(
           {
             ...init,
             redirect: "manual",
+            // Read current origin state; public image caching belongs to the CDN.
+            cache: "no-store",
             signal: AbortSignal.timeout(15000)
           },
           credentials
diff --git a/test/services/extensions/v2/b2-store.node.test.ts b/test/services/extensions/v2/b2-store.node.test.ts
index 90aedd2f..3dafd7f7 100644
--- a/test/services/extensions/v2/b2-store.node.test.ts
+++ b/test/services/extensions/v2/b2-store.node.test.ts
@@ -52,6 +52,7 @@ describe("B2 object storage", () => {
         /^AWS4-HMAC-SHA256 /
       );
       expect(request.redirect).toBe("manual");
+      expect(request.cache).toBe("no-store");
     }
     expect(requests[0].headers.get("Cache-Control")).toBe("private, no-store");
     expect(requests[0].headers.get("x-amz-content-sha256")).toBe(checksum);
@@ -98,6 +99,7 @@ describe("B2 object storage", () => {
         expect(request.headers.get("Authorization")).toContain(
           "AWS4-HMAC-SHA256"
         );
+        expect(request.cache).toBe("no-store");
       }
       expect(requests[0].headers.get("Content-Type")).toBe(
         format === "svg" ? "image/svg+xml" : `image/${format}`