diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 206a16c8f5..f35ea04a77 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -42,7 +42,7 @@ jobs:
 
       - name: "Downgrade PHPUnit"
         if: matrix.php-version == '7.4' || matrix.php-version == '8.0' || matrix.php-version == '8.1'
-        run: "composer require --dev phpunit/phpunit:^9.6 sebastian/diff:^4.0 --update-with-dependencies --ignore-platform-reqs"
+        run: "composer require --dev phpunit/phpunit:^9.6 sebastian/diff:^4.0 doctrine/instantiator:^1.0 --update-with-dependencies --ignore-platform-reqs"
 
       - uses: "ramsey/composer-install@v3"
 
diff --git a/.github/workflows/phar.yml b/.github/workflows/phar.yml
index 824a6b84a4..79ba443868 100644
--- a/.github/workflows/phar.yml
+++ b/.github/workflows/phar.yml
@@ -42,7 +42,7 @@ jobs:
 
       # only sebastian/diff ^4 supports PHP 7.4 so we need that in the PHAR
       - name: "Downgrade PHPUnit"
-        run: "composer require --dev phpunit/phpunit:^9.6 sebastian/diff:^4.0 --update-with-dependencies --ignore-platform-reqs"
+        run: "composer require --dev phpunit/phpunit:^9.6 sebastian/diff:^4.0 doctrine/instantiator:^1.0 --update-with-dependencies --ignore-platform-reqs"
 
       - name: "Install compiler dependencies"
         uses: "ramsey/composer-install@v3"
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index d76ecb10e6..8351a59fd6 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -69,7 +69,7 @@ jobs:
       - name: "Downgrade PHPUnit"
         if: matrix.php-version == '7.4' || matrix.php-version == '8.0' || matrix.php-version == '8.1'
         shell: bash
-        run: "composer require --dev phpunit/phpunit:^9.6 sebastian/diff:^4.0 --update-with-dependencies --ignore-platform-reqs"
+        run: "composer require --dev phpunit/phpunit:^9.6 sebastian/diff:^4.0 doctrine/instantiator:^1.0 --update-with-dependencies --ignore-platform-reqs"
 
       - uses: "ramsey/composer-install@v3"
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 37d6ac4d16..66123b91b7 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -245,13 +245,13 @@ jobs:
 
       - name: "Downgrade PHPUnit"
         shell: bash
-        run: "composer require --dev phpunit/phpunit:^9.6 sebastian/diff:^4.0 --update-with-dependencies --ignore-platform-reqs"
+        run: "composer require --dev phpunit/phpunit:^9.6 sebastian/diff:^4.0 doctrine/instantiator:^1.0 --update-with-dependencies --ignore-platform-reqs"
 
       - uses: "ramsey/composer-install@v3"
 
       - name: "Downgrade PHPUnit with Paratest"
         shell: bash
-        run: "composer require --dev phpunit/phpunit:^9.6 brianium/paratest:^6.5 symfony/console:^5.4 symfony/process:^5.4 --update-with-dependencies --ignore-platform-reqs --working-dir=tests"
+        run: "composer require --dev phpunit/phpunit:^9.6 brianium/paratest:^6.5 symfony/console:^5.4 symfony/process:^5.4 doctrine/instantiator:^1.0 --update-with-dependencies --ignore-platform-reqs --working-dir=tests"
 
       - uses: ./.github/actions/downgrade-code
         with: