diff --git a/.ci/scripts/enable_swift_package_manager.sh b/.ci/scripts/enable_swift_package_manager.sh
new file mode 100755
index 000000000000..d8d789e7da95
--- /dev/null
+++ b/.ci/scripts/enable_swift_package_manager.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+# Copyright 2013 The Flutter Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+set -e
+
+flutter config --enable-swift-package-manager
diff --git a/.ci/targets/ios_platform_tests.yaml b/.ci/targets/ios_platform_tests.yaml
index 08eaaf54c15a..4e10a6f091b7 100644
--- a/.ci/targets/ios_platform_tests.yaml
+++ b/.ci/targets/ios_platform_tests.yaml
@@ -2,6 +2,10 @@ tasks:
   - name: prepare tool
     script: .ci/scripts/prepare_tool.sh
     infra_step: true # Note infra steps failing prevents "always" from running.
+  - name: enable Swift Package Manager
+    # For consistency between stable and master channels, enable SwiftPM.
+    # TODO(stuartmorgan): Remove this step once it's the default on stable.
+    script: .ci/scripts/enable_swift_package_manager.sh
   - name: create simulator
     script: .ci/scripts/create_simulator.sh
     infra_step: true # Note infra steps failing prevents "always" from running.
diff --git a/.ci/targets/macos_platform_tests.yaml b/.ci/targets/macos_platform_tests.yaml
index ab8b033d09c6..fd2a1767cc2f 100644
--- a/.ci/targets/macos_platform_tests.yaml
+++ b/.ci/targets/macos_platform_tests.yaml
@@ -2,6 +2,10 @@ tasks:
   - name: prepare tool
     script: .ci/scripts/prepare_tool.sh
     infra_step: true # Note infra steps failing prevents "always" from running.
+  - name: enable Swift Package Manager
+    # For consistency between stable and master channels, enable SwiftPM.
+    # TODO(stuartmorgan): Remove this step once it's the default on stable.
+    script: .ci/scripts/enable_swift_package_manager.sh
   - name: download Dart and macOS deps
     script: .ci/scripts/tool_runner.sh
     args: ["fetch-deps", "--macos", "--supporting-target-platforms-only", "--swift-package-manager"]