diff --git a/src/onedb/database_schema.rb b/src/onedb/database_schema.rb
index 7a77b8f351..087f8cec16 100644
--- a/src/onedb/database_schema.rb
+++ b/src/onedb/database_schema.rb
@@ -86,7 +86,7 @@ class OneDBBacKEnd
 
         # Discard versions greater than the one we are searching for
         versions = VERSION_SCHEMA.keys.reject do |v|
-            Gem::Version.new(v) > gver
+            Gem::Version.new(v.dup) > gver
         end
 
         # Order versions in decreasing order