diff --git a/src/Composer/DependencyResolver/LockTransaction.php b/src/Composer/DependencyResolver/LockTransaction.php
index f4f6d1bb8..eb5dead6b 100644
--- a/src/Composer/DependencyResolver/LockTransaction.php
+++ b/src/Composer/DependencyResolver/LockTransaction.php
@@ -93,12 +93,13 @@ class LockTransaction extends Transaction
                 // we do not reset references if the currently present package didn't have any, or if the type of VCS has changed
                 if ($updateMirrors && !isset($this->presentMap[spl_object_hash($package)])) {
                     foreach ($this->presentMap as $presentPackage) {
-                        if ($package->getName() == $presentPackage->getName() &&
-                            $package->getVersion() == $presentPackage->getVersion() &&
-                            $presentPackage->getSourceReference() &&
-                            $presentPackage->getSourceType() === $package->getSourceType()
-                        ) {
-                            $package->setSourceDistReferences($presentPackage->getSourceReference());
+                        if ($package->getName() == $presentPackage->getName() && $package->getVersion() == $presentPackage->getVersion()) {
+                            if ($presentPackage->getSourceReference() && $presentPackage->getSourceType() === $package->getSourceType()) {
+                                $package->setSourceDistReferences($presentPackage->getSourceReference());
+                            }
+                            if ($presentPackage->getReleaseDate()) {
+                                $package->setReleaseDate($presentPackage->getReleaseDate());
+                            }
                         }
                     }
                 }
diff --git a/tests/Composer/Test/Fixtures/installer/update-mirrors-changes-url.test b/tests/Composer/Test/Fixtures/installer/update-mirrors-changes-url.test
index 767b6dbc5..edb821f8c 100644
--- a/tests/Composer/Test/Fixtures/installer/update-mirrors-changes-url.test
+++ b/tests/Composer/Test/Fixtures/installer/update-mirrors-changes-url.test
@@ -154,7 +154,7 @@ g/g is dev and installed in a different ref than the #ref, so it gets updated an
             "name": "a/a", "version": "dev-master",
             "source": { "reference": "1111111111111111111111111111111111111111", "url": "https://github.com/a/newa", "type": "git" },
             "dist": { "reference": "1111111111111111111111111111111111111111", "url": "https://api.github.com/repos/a/newa/zipball/1111111111111111111111111111111111111111", "type": "zip" },
-            "time": "2021-03-27T14:32:16+00:00",
+            "time": "2021-03-14T16:24:37+00:00",
             "type": "library"
         },
         {