diff --git a/.gitattributes b/.gitattributes
index 3f2077e..a31a66e 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,3 +1,4 @@
+.github export-ignore
 .cow.json export-ignore
 .cow export-ignore
 .gitattributes export-ignore
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3b8ad97..74f20d7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,6 +17,9 @@ jobs:
     with:
       # installer contains a sample behat.yml file, though there are no behat tests to run
       endtoend: false
+      # require the following in ci.yml rather than composer.json require-dev specifically for installer because unlike
+      # regular modules, require-dev will get installed to projects during `composer create-project silverstripe/installer`
+      composer_require_extra: silverstripe/recipe-testing:^2 silverstripe/frameworktest:^0.4.2 mikey179/vfsstream:^1.6.10
       extra_jobs: |
         - endtoend: true
           endtoend_suite: admin
diff --git a/composer.json b/composer.json
index d3c70b4..0420941 100644
--- a/composer.json
+++ b/composer.json
@@ -10,9 +10,7 @@
         "silverstripe/login-forms": "4.x-dev"
     },
     "require-dev": {
-        "silverstripe/recipe-testing": "^2",
-        "silverstripe/frameworktest": "^0.4.2",
-        "mikey179/vfsstream": "^1.6.10"
+        "phpunit/phpunit": "^9.5"
     },
     "extra": {
         "project-files": [
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 7b04144..a83245f 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -43,7 +43,11 @@
             <directory>vendor/silverstripe/asset-admin/tests/php/</directory>
             <directory>vendor/silverstripe/campaign-admin/tests/php/</directory>
             <directory>vendor/silverstripe/cms/tests/</directory>
+            <directory>vendor/silverstripe/config/tests/</directory>
+            <directory>vendor/silverstripe/errorpage/tests/</directory>
             <directory>vendor/silverstripe/graphql/tests/</directory>
+            <directory>vendor/silverstripe/login-forms/tests/php/</directory>
+            <directory>vendor/silverstripe/mimevalidator/tests/</directory>
             <directory>vendor/silverstripe/reports/tests/</directory>
             <directory>vendor/silverstripe/siteconfig/tests/php/</directory>
         </testsuite>