diff --git a/.gitea/workflows/ci.yaml b/.gitea/workflows/ci.yaml
index 6c64e073..059fafef 100644
--- a/.gitea/workflows/ci.yaml
+++ b/.gitea/workflows/ci.yaml
@@ -29,7 +29,7 @@ jobs:
         run: node scripts/check-node-toolchain.mjs
 
       - name: Install dependencies
-        run: pnpm install --frozen-lockfile --jobs 1
+        run: pnpm install --frozen-lockfile
 
       - name: Lint
         run: pnpm biome:lint
diff --git a/src/lib/ci-workflow-contract.test.ts b/src/lib/ci-workflow-contract.test.ts
index ecc86a61..930da870 100644
--- a/src/lib/ci-workflow-contract.test.ts
+++ b/src/lib/ci-workflow-contract.test.ts
@@ -45,6 +45,11 @@ describe("CI workflow", () => {
 		expect(workflow).toContain("scripts/check-node-toolchain.mjs");
 	});
 
+	it("uses only valid pnpm install flags (no --jobs)", () => {
+		expect(workflow).toContain("pnpm install --frozen-lockfile");
+		expect(workflow).not.toContain("--jobs");
+	});
+
 	it("does not use github context", () => {
 		expect(workflow).not.toContain("github.ref");
 	});