diff --git a/test/build-test.ts b/test/build-test.ts
index b477d58fd..aade58fd6 100644
--- a/test/build-test.ts
+++ b/test/build-test.ts
@@ -2,9 +2,10 @@ import assert from "node:assert";
import {existsSync, readdirSync, statSync} from "node:fs";
import {mkdir, mkdtemp, open, readFile, rename, rm, unlink, writeFile} from "node:fs/promises";
import os from "node:os";
+import {extname} from "node:path/posix";
import {join, normalize, relative} from "node:path/posix";
import {PassThrough} from "node:stream";
-import {ascending, difference} from "d3-array";
+import {ascending, difference, sort} from "d3-array";
import type {BuildManifest} from "../src/build.js";
import {FileBuildEffects, build} from "../src/build.js";
import {normalizeConfig, readConfig, setCurrentDate} from "../src/config.js";
@@ -76,7 +77,10 @@ describe("build", () => {
// renumber the hashes so they are sequential. This way we don’t have to
// update the test snapshots whenever Framework’s client code changes. We
// make an exception for minisearch.json because to test the content.
- for (const path of findFiles(join(outputDir, "_observablehq"))) {
+ for (const path of sort(
+ findFiles(join(outputDir, "_observablehq")),
+ (a, b) => ascending(extname(a) === ".css", extname(b) === ".css") || ascending(a, b)
+ )) {
const match = /^((.+)\.[0-9a-f]{8})\.(\w+)$/.exec(path);
if (!match) throw new Error(`no hash found: ${path}`);
const [, key, name, ext] = match;
diff --git a/test/output/build/duckdb/_observablehq/stdlib/duckdb.00000005.js b/test/output/build/duckdb/_observablehq/stdlib/duckdb.00000004.js
similarity index 100%
rename from test/output/build/duckdb/_observablehq/stdlib/duckdb.00000005.js
rename to test/output/build/duckdb/_observablehq/stdlib/duckdb.00000004.js
diff --git a/test/output/build/npm/_observablehq/stdlib/inputs.00000005.js b/test/output/build/duckdb/_observablehq/stdlib/inputs.00000005.js
similarity index 100%
rename from test/output/build/npm/_observablehq/stdlib/inputs.00000005.js
rename to test/output/build/duckdb/_observablehq/stdlib/inputs.00000005.js
diff --git a/test/output/build/npm/_observablehq/stdlib/inputs.00000006.css b/test/output/build/duckdb/_observablehq/stdlib/inputs.00000006.css
similarity index 100%
rename from test/output/build/npm/_observablehq/stdlib/inputs.00000006.css
rename to test/output/build/duckdb/_observablehq/stdlib/inputs.00000006.css
diff --git a/test/output/build/duckdb/_observablehq/stdlib/inputs.00000006.js b/test/output/build/duckdb/_observablehq/theme-air,near-midnight.00000007.css
similarity index 100%
rename from test/output/build/duckdb/_observablehq/stdlib/inputs.00000006.js
rename to test/output/build/duckdb/_observablehq/theme-air,near-midnight.00000007.css
diff --git a/test/output/build/duckdb/index.html b/test/output/build/duckdb/index.html
index b0ceaf67b..d470ee724 100644
--- a/test/output/build/duckdb/index.html
+++ b/test/output/build/duckdb/index.html
@@ -7,16 +7,16 @@
test DuckDB
-
-
+
+
-
-
+
+
-
-
+
+
diff --git a/test/output/build/npm/_import/index.4bdc071f.js b/test/output/build/npm/_import/index.4bdc071f.js
index 108b15a25..bddccaad0 100644
--- a/test/output/build/npm/_import/index.4bdc071f.js
+++ b/test/output/build/npm/_import/index.4bdc071f.js
@@ -1 +1 @@
-import "../_observablehq/stdlib/inputs.00000005.js";
+import "../_observablehq/stdlib/inputs.00000004.js";
diff --git a/test/output/build/duckdb/_observablehq/stdlib/inputs.00000007.css b/test/output/build/npm/_observablehq/stdlib/inputs.00000004.js
similarity index 100%
rename from test/output/build/duckdb/_observablehq/stdlib/inputs.00000007.css
rename to test/output/build/npm/_observablehq/stdlib/inputs.00000004.js
diff --git a/test/output/build/duckdb/_observablehq/theme-air,near-midnight.00000004.css b/test/output/build/npm/_observablehq/stdlib/inputs.00000005.css
similarity index 100%
rename from test/output/build/duckdb/_observablehq/theme-air,near-midnight.00000004.css
rename to test/output/build/npm/_observablehq/stdlib/inputs.00000005.css
diff --git a/test/output/build/npm/_observablehq/theme-air,near-midnight.00000004.css b/test/output/build/npm/_observablehq/theme-air,near-midnight.00000006.css
similarity index 100%
rename from test/output/build/npm/_observablehq/theme-air,near-midnight.00000004.css
rename to test/output/build/npm/_observablehq/theme-air,near-midnight.00000006.css
diff --git a/test/output/build/npm/index.html b/test/output/build/npm/index.html
index 64771f980..a14a21894 100644
--- a/test/output/build/npm/index.html
+++ b/test/output/build/npm/index.html
@@ -6,16 +6,16 @@
-
-
+
+
-
-
+
+
-
+