diff --git a/composer.json b/composer.json
index f1cd63e..267cecd 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
   ],
   "require" : {
     "php" : ">=7.1",
-    "thecodingmachine/tdbm" : "^5.0",
+    "thecodingmachine/tdbm" : "~5.0.0",
     "doctrine/doctrine-bundle": "^1.9",
     "doctrine/orm": "*"
   },