diff --git a/composer.json b/composer.json
index 2fc7f40..bcb237d 100644
--- a/composer.json
+++ b/composer.json
@@ -21,6 +21,7 @@
         "openlss/lib-array2xml": "^1.0",
         "php-http/client-common": "^2.6",
         "psr/cache": "^1.0.1 || ^2 || ^3",
+        "psr/cache-implementation": "^1",
         "psr/http-client": "^1.0",
         "psr/http-client-implementation": "^1",
         "psr/http-factory": "^1.0.1",