diff --git a/third_party/dependency_analyzer/src/main/io/bazel/rulesscala/dependencyanalyzer/OptionsParser.scala b/third_party/dependency_analyzer/src/main/io/bazel/rulesscala/dependencyanalyzer/OptionsParser.scala
index 8cfa0fddb..4e948de7e 100644
--- a/third_party/dependency_analyzer/src/main/io/bazel/rulesscala/dependencyanalyzer/OptionsParser.scala
+++ b/third_party/dependency_analyzer/src/main/io/bazel/rulesscala/dependencyanalyzer/OptionsParser.scala
@@ -46,6 +46,6 @@ class OptionsParser private(
   }
 
   def takeStringSeqOpt(key: String): Option[Seq[String]] = {
-    takeStringOpt(key).map(_.split(":"))
+    takeStringOpt(key).map(_.split(":").toSeq)
   }
 }