diff --git a/tests/Composer/Test/Fixtures/functional/installed-versions/composer.json b/tests/Composer/Test/Fixtures/functional/installed-versions/composer.json
index 36768b2b1..2b6ea3312 100644
--- a/tests/Composer/Test/Fixtures/functional/installed-versions/composer.json
+++ b/tests/Composer/Test/Fixtures/functional/installed-versions/composer.json
@@ -5,7 +5,7 @@
         "plugin/a": "*",
         "plugin/b": "*",
         "symfony/process": "*",
-        "symfony/filesystem": "*"
+        "symfony/filesystem": "5.2.4"
     },
     "repositories": [
         {"type": "path", "url": "plugin-*"},
diff --git a/tests/Composer/Test/Fixtures/functional/installed-versions2/composer.json b/tests/Composer/Test/Fixtures/functional/installed-versions2/composer.json
index 2c9388ef6..59ef7cad3 100644
--- a/tests/Composer/Test/Fixtures/functional/installed-versions2/composer.json
+++ b/tests/Composer/Test/Fixtures/functional/installed-versions2/composer.json
@@ -5,7 +5,7 @@
         "plugin/a": "*",
         "plugin/b": "*",
         "symfony/process": "*",
-        "symfony/filesystem": "*"
+        "symfony/filesystem": "5.2.4"
     },
     "repositories": [
         {"type": "path", "url": "plugin-*", "options": {"symlink": false}},