diff --git a/pkg/versioning/repository-fetcher.go b/pkg/versioning/repository-fetcher.go
index 02a6711..2e3049e 100644
--- a/pkg/versioning/repository-fetcher.go
+++ b/pkg/versioning/repository-fetcher.go
@@ -82,6 +82,8 @@ func (fetcher *RepositoryFetcherImpl) Fetch(baseFolder string, disableTerminalPr
 	if err != nil {
 		errors = append(errors, &FetcherError{err, false})
 	}
+	defer branches.Close()
+
 	refPrefix := "refs/heads/"
 	branches.ForEach(func(ref *plumbing.Reference) error {
 		refName := ref.Name().String()
@@ -128,6 +130,7 @@ func (fetcher *RepositoryFetcherImpl) Fetch(baseFolder string, disableTerminalPr
 		errors = append(errors, &FetcherError{err, false})
 		return nil, errors
 	}
+	defer tags.Close()
 
 	tagPrefix := "refs/tags/"
 	err = tags.ForEach(func(ref *plumbing.Reference) error {
@@ -171,6 +174,7 @@ func (fetcher *RepositoryFetcherImpl) Fetch(baseFolder string, disableTerminalPr
 		errors = append(errors, &FetcherError{err, false})
 		return nil, errors
 	}
+	defer tagObjects.Close()
 
 	err = tagObjects.ForEach(func(ref *object.Tag) error {
 		refName := ref.Name
@@ -215,6 +219,7 @@ func (fetcher *RepositoryFetcherImpl) Fetch(baseFolder string, disableTerminalPr
 		errors = append(errors, &FetcherError{err, false})
 		return nil, errors
 	}
+	defer logs.Close()
 
 	err = logs.ForEach(func(commit *object.Commit) error {
 		commitHash := commit.Hash.String()
diff --git a/third_party/polo-pro b/third_party/polo-pro
new file mode 160000
index 0000000..dc8c72c
--- /dev/null
+++ b/third_party/polo-pro
@@ -0,0 +1 @@
+Subproject commit dc8c72c0f877738d16425ffca13eb9b7fefa552e