diff --git a/config/mw-db-version-map.php b/config/mw-db-version-map.php
index a6a26abd..c74cb938 100644
--- a/config/mw-db-version-map.php
+++ b/config/mw-db-version-map.php
@@ -2,7 +2,6 @@
 
 // TODO: Read from outside of this codebase so that MW updates do not require code changes here.
 $versionMap = [
-    'mw1.39-wbs1' => '139',
     'mw1.43-wbs1' => '143',
 ];
 
diff --git a/tests/Services/MediaWikiHostResolverTest.php b/tests/Services/MediaWikiHostResolverTest.php
index d3dfe002..e5f8da81 100644
--- a/tests/Services/MediaWikiHostResolverTest.php
+++ b/tests/Services/MediaWikiHostResolverTest.php
@@ -15,10 +15,10 @@ class MediaWikiHostResolverTest extends TestCase {
 
     public function testResolverRoutesToCorrectHost(): void {
         $domain = (new Factory)->create()->unique()->text(30);
-        $this->createWiki($domain, 'mw1.39-wbs1');
+        $this->createWiki($domain, 'mw1.43-wbs1');
         $resolver = new MediaWikiHostResolver;
         $this->assertEquals(
-            'mediawiki-139-app-backend.default.svc.cluster.local',
+            'mediawiki-143-app-backend.default.svc.cluster.local',
             $resolver->getBackendHostForDomain($domain)
         );
     }
@@ -37,7 +37,7 @@ private function createWiki(string $domain, string $version) {
 
     public function testResolverThrowsIfUnableToFindHostInMap(): void {
         $domain = (new Factory)->create()->unique()->text(30);
-        $this->createWiki($domain, 'mw1.39-unmapped');
+        $this->createWiki($domain, 'mw1.43-unmapped');
         $resolver = new MediaWikiHostResolver;
         $this->assertThrows(
             fn () => $resolver->getBackendHostForDomain($domain),