diff --git a/src/publish.ts b/src/publish.ts
index 1aba24d..6b6be7e 100644
--- a/src/publish.ts
+++ b/src/publish.ts
@@ -426,7 +426,18 @@ export async function handlePublish(
     }
   }
 
-  if (!zlsVersion.isRelease && zlsVersion.commitHeight !== undefined) {
+  let skipArtifactUpload;
+
+  if (zlsVersion.isRelease) {
+    const result = await env.ZIGTOOLS_DB.prepare(
+      "SELECT ZLSVersion FROM ZLSReleases WHERE ZLSVersion = ?1",
+    )
+      .bind(zlsVersionString)
+      .first<{ ZLSVersion: string }>();
+
+    skipArtifactUpload = result !== null;
+  } else {
+    assert(zlsVersion.commitHeight !== undefined);
     const result = await env.ZIGTOOLS_DB.prepare(
       "SELECT ZLSVersion FROM ZLSReleases WHERE IsRelease = 0 AND ZLSVersionMajor = ?1 AND ZLSVersionMinor = ?2 AND ZLSVersionPatch = ?3 AND ZLSVersionBuildID = ?4",
     )
@@ -438,6 +449,8 @@ export async function handlePublish(
       )
       .first<{ ZLSVersion: string }>();
 
+    skipArtifactUpload = result !== null;
+
     if (result !== null && zlsVersionString !== result.ZLSVersion) {
       return new Response(
         `ZLS version is '${zlsVersionString}' can't be published because ZLS '${result.ZLSVersion}' has already been published!`,
@@ -472,6 +485,8 @@ export async function handlePublish(
     ),
   ]);
 
+  if (skipArtifactUpload) return new Response();
+
   const promises: Promise<R2Object>[] = [];
 
   for (let i = 0; i < artifacts.length; i++) {
@@ -501,7 +516,5 @@ export async function handlePublish(
 
   await Promise.all(promises);
 
-  return new Response(undefined, {
-    status: 200, // Ok
-  });
+  return new Response();
 }
diff --git a/test/publish.test.ts b/test/publish.test.ts
index 1c5b2e0..5c51f76 100644
--- a/test/publish.test.ts
+++ b/test/publish.test.ts
@@ -1059,7 +1059,7 @@ describe("/v1/publish", () => {
           ],
           [
             "zls-linux-x86_64-0.11.0.tar.gz",
-            new Blob([gzipMagicNumber, "binary1"]),
+            new Blob([gzipMagicNumber, "binary2"]),
           ],
         ],
       });
@@ -1074,15 +1074,15 @@ describe("/v1/publish", () => {
         artifacts: [
           [
             "zls-linux-x86_64-0.11.0.tar.xz",
-            new Blob([xzMagicNumber, "binary2"]),
+            new Blob([xzMagicNumber, "binary3"]),
           ],
           [
             "zls-linux-x86_64-0.11.0.tar.gz",
-            new Blob([gzipMagicNumber, "binary2"]),
+            new Blob([gzipMagicNumber, "binary4"]),
           ],
           [
             "zls-windows-aarch64-0.11.0.zip",
-            new Blob([zipMagicNumber, "binary2"]),
+            new Blob([zipMagicNumber, "binary5"]),
           ],
         ],
       });
@@ -1121,11 +1121,44 @@ describe("/v1/publish", () => {
           extension: "tar.gz",
           fileShasum: createHash("sha256")
             .update(gzipMagicNumber)
-            .update("binary1")
+            .update("binary2")
             .digest("hex"),
           fileSize: gzipMagicNumber.byteLength + 7,
         },
       ],
     });
+
+    const objects = await env.ZIGTOOLS_BUILDS.list({});
+
+    expect(objects.objects).toMatchObject([
+      {
+        key: "zls-linux-x86_64-0.11.0.tar.gz",
+        size: gzipMagicNumber.length + 7,
+      },
+      {
+        key: "zls-linux-x86_64-0.11.0.tar.xz",
+        size: xzMagicNumber.length + 7,
+      },
+    ]);
+
+    assert(objects.objects[0].checksums.sha256 !== undefined);
+    assert(objects.objects[1].checksums.sha256 !== undefined);
+
+    expect(
+      Buffer.from(objects.objects[0].checksums.sha256).toString("hex"),
+    ).toBe(
+      createHash("sha256")
+        .update(gzipMagicNumber)
+        .update("binary2")
+        .digest("hex"),
+    );
+    expect(
+      Buffer.from(objects.objects[1].checksums.sha256).toString("hex"),
+    ).toBe(
+      createHash("sha256")
+        .update(xzMagicNumber)
+        .update("binary1")
+        .digest("hex"),
+    );
   });
 });