diff --git a/internal/collector/collector.go b/internal/collector/collector.go
index 35a29d1..cae0fdb 100644
--- a/internal/collector/collector.go
+++ b/internal/collector/collector.go
@@ -47,8 +47,8 @@ func (c *Collector) CollectMetrics(root fs.FS, collectionTime time.Time) error {
 }
 
 func (c *Collector) collectMetrics(root fs.FS) (metrics.Metrics, error) {
-	noteCount := 0
-	linkCount := 0
+	var noteCount uint
+	var linkCount uint
 	notes := make(map[string]metrics.NoteMetrics)
 
 	err := fs.WalkDir(root, ".", func(path string, dir fs.DirEntry, err error) error {
diff --git a/internal/collector/collector_test.go b/internal/collector/collector_test.go
index 06e460f..34b4149 100644
--- a/internal/collector/collector_test.go
+++ b/internal/collector/collector_test.go
@@ -55,19 +55,19 @@ Link to [one](./one.md) and also a full link [[./dir1/dir2/three]] and a [[./dir
 		LinkCount: 8,
 		Notes: map[string]metrics.NoteMetrics{
 			"zettel/one.md": {
-				Links:     map[string]int{"./dir1/two.md": 2},
+				Links:     map[string]uint{"./dir1/two.md": 2},
 				LinkCount: 2,
 			},
 			"zettel/dir1/two.md": {
-				Links:     map[string]int{"one": 1},
+				Links:     map[string]uint{"one": 1},
 				LinkCount: 1,
 			},
 			"zettel/dir1/dir2/three.md": {
-				Links:     map[string]int{"one": 1, "two": 1},
+				Links:     map[string]uint{"one": 1, "two": 1},
 				LinkCount: 2,
 			},
 			"zettel/four.md": {
-				Links:     map[string]int{"./one.md": 1, "./dir1/dir2/three": 1, "./dir1/two.md": 1},
+				Links:     map[string]uint{"./one.md": 1, "./dir1/dir2/three": 1, "./dir1/two.md": 1},
 				LinkCount: 3,
 			},
 		},
diff --git a/internal/collector/note.go b/internal/collector/note.go
index bebfd64..722c959 100644
--- a/internal/collector/note.go
+++ b/internal/collector/note.go
@@ -18,19 +18,19 @@ var md = goldmark.New(
 )
 
 func CollectNoteMetrics(content []byte) metrics.NoteMetrics {
+	var linkCount uint
 	links := collectLinks(content)
-	linkCount := 0
 	for _, v := range links {
 		linkCount += v
 	}
 	return metrics.NoteMetrics{Links: links, LinkCount: linkCount}
 }
 
-func collectLinks(content []byte) map[string]int {
+func collectLinks(content []byte) map[string]uint {
 	linkKinds := []ast.NodeKind{ast.KindLink, wikilink.Kind}
 	reader := text.NewReader(content)
 	root := md.Parser().Parse(reader)
-	links := make(map[string]int)
+	links := make(map[string]uint)
 	err := ast.Walk(root, func(n ast.Node, entering bool) (ast.WalkStatus, error) {
 		if entering && slices.Contains(linkKinds, n.Kind()) {
 			var target string
diff --git a/internal/collector/note_test.go b/internal/collector/note_test.go
index 20f223a..83f4834 100644
--- a/internal/collector/note_test.go
+++ b/internal/collector/note_test.go
@@ -17,7 +17,7 @@ func TestCollectNoteMetrics(t *testing.T) {
 			name:    "empty file",
 			content: "",
 			expected: metrics.NoteMetrics{
-				Links:     map[string]int{},
+				Links:     map[string]uint{},
 				LinkCount: 0,
 			},
 		},
@@ -25,7 +25,7 @@ func TestCollectNoteMetrics(t *testing.T) {
 			name:    "wiki links",
 			content: "[[Link]]aksdjf[[something|another]]\n[[link]]",
 			expected: metrics.NoteMetrics{
-				Links:     map[string]int{"Link": 1, "something": 1, "link": 1},
+				Links:     map[string]uint{"Link": 1, "something": 1, "link": 1},
 				LinkCount: 3,
 			},
 		},
@@ -33,7 +33,7 @@ func TestCollectNoteMetrics(t *testing.T) {
 			name:    "markdown link",
 			content: "[Link](target.md)",
 			expected: metrics.NoteMetrics{
-				Links:     map[string]int{"target.md": 1},
+				Links:     map[string]uint{"target.md": 1},
 				LinkCount: 1,
 			},
 		},
@@ -41,7 +41,7 @@ func TestCollectNoteMetrics(t *testing.T) {
 			name:    "mixed links",
 			content: "okok[Link](target.md)\n**ddk**[[linked]]`test`[[another|link]]\n\n[test](yet-another.md)",
 			expected: metrics.NoteMetrics{
-				Links:     map[string]int{"target.md": 1, "linked": 1, "another": 1, "yet-another.md": 1},
+				Links:     map[string]uint{"target.md": 1, "linked": 1, "another": 1, "yet-another.md": 1},
 				LinkCount: 4,
 			},
 		},
@@ -49,7 +49,7 @@ func TestCollectNoteMetrics(t *testing.T) {
 			name:    "repeated links",
 			content: "[[target.md|link]]\n[link](target.md)\n[[link]]",
 			expected: metrics.NoteMetrics{
-				Links:     map[string]int{"target.md": 2, "link": 1},
+				Links:     map[string]uint{"target.md": 2, "link": 1},
 				LinkCount: 3,
 			},
 		},
@@ -57,7 +57,7 @@ func TestCollectNoteMetrics(t *testing.T) {
 			name:    "ignore embeddedlinks",
 			content: "![[target.png]]\n!()[another.jpeg]\n[[link]]",
 			expected: metrics.NoteMetrics{
-				Links:     map[string]int{"link": 1},
+				Links:     map[string]uint{"link": 1},
 				LinkCount: 1,
 			},
 		},
diff --git a/internal/metrics/metrics.go b/internal/metrics/metrics.go
index b0901f1..71fc36d 100644
--- a/internal/metrics/metrics.go
+++ b/internal/metrics/metrics.go
@@ -1,12 +1,12 @@
 package metrics
 
 type Metrics struct {
-	NoteCount int
-	LinkCount int
+	NoteCount uint
+	LinkCount uint
 	Notes     map[string]NoteMetrics
 }
 
 type NoteMetrics struct {
-	Links     map[string]int
-	LinkCount int
+	Links     map[string]uint
+	LinkCount uint
 }