diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 089c627..34301e1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,42 +18,42 @@ jobs:
       matrix:
         include:
           - mediawiki_version: '1.39'
-            smw_version: dev-master
+            smw_version: 5.1.0
             php_version: 8.1
             database_type: mysql
             database_image: "mariadb:11.2"
             coverage: false
             experimental: false
           - mediawiki_version: '1.39'
-            smw_version: dev-master
+            smw_version: 5.1.0
             php_version: 8.1
             database_type: mysql
             database_image: "mysql:8"
             coverage: false
             experimental: false
           - mediawiki_version: '1.40'
-            smw_version: dev-master
+            smw_version: 5.1.0
             php_version: 8.1
             database_type: mysql
             database_image: "mariadb:11.2"
             coverage: true
             experimental: false
           - mediawiki_version: '1.40'
-            smw_version: dev-master
+            smw_version: 5.1.0
             php_version: 8.1
             database_type: postgres
             database_image: "postgres:14"
             coverage: false
             experimental: false
           - mediawiki_version: '1.41'
-            smw_version: dev-master
+            smw_version: 5.1.0
             php_version: 8.1
             database_type: mysql
             database_image: "mariadb:11.2"
             coverage: false
             experimental: false
           - mediawiki_version: '1.42'
-            smw_version: dev-master
+            smw_version: 5.1.0
             php_version: 8.1
             database_type: mysql
             database_image: "mariadb:11.2"
diff --git a/composer.json b/composer.json
index 16d7379..3063bb1 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,6 @@
 		"composer/installers": "^2|^1.0.1"
 	},
 	"require-dev": {
-		"mediawiki/semantic-media-wiki": "@dev",
 		"squizlabs/php_codesniffer": "~2.1",
 		"phpmd/phpmd": "~2.1"
 	},