diff --git a/.github/workflows/c3-e2e.yml b/.github/workflows/c3-e2e.yml
index 9dab2e428f..24070c22fe 100644
--- a/.github/workflows/c3-e2e.yml
+++ b/.github/workflows/c3-e2e.yml
@@ -287,6 +287,10 @@ jobs:
         run: pnpm run test:e2e:c3
         env:
           NODE_VERSION: ${{ env.NODE_VERSION }}
+          # Some framework generators write a different pnpm version to `packageManager`.
+          # By default pnpm downloads and runs it. Concurrent tests can then provision
+          # that version in the same pnpm tool store, causing recursive installs.
+          pnpm_config_manage_package_manager_versions: "false"
           E2E_EXPERIMENTAL: ${{ matrix.experimental }}
           E2E_TEST_PM: ${{ matrix.pm.name }}
           E2E_TEST_PM_VERSION: ${{ matrix.pm.version }}
diff --git a/packages/create-cloudflare/turbo.json b/packages/create-cloudflare/turbo.json
index 918fd28c77..ae9209806b 100644
--- a/packages/create-cloudflare/turbo.json
+++ b/packages/create-cloudflare/turbo.json
@@ -28,7 +28,8 @@
 				"E2E_FRAMEWORK_TEMPLATE_TO_TEST",
 				"E2E_PROJECT_PATH",
 				"E2E_TEST_RETRIES",
-				"E2E_RUN_DEPLOY_TESTS"
+				"E2E_RUN_DEPLOY_TESTS",
+				"pnpm_config_manage_package_manager_versions"
 			],
 			"dependsOn": ["build"],
 			"inputs": ["e2e/**", "vitest-e2e.config.ts", "!e2e/README.md"],