diff --git a/anonymizer.go b/anonymizer.go
index c9b373b..76073bc 100644
--- a/anonymizer.go
+++ b/anonymizer.go
@@ -4,8 +4,6 @@ import (
 	_ "embed"
 	"iter"
 	"unicode"
-
-	"github.com/derekparker/trie"
 )
 
 type Anonymizer struct {
@@ -61,7 +59,7 @@ func (a Anonymizer) mask(runes []rune, span span) {
 }
 
 // Check if the word in the given span should be anonymized.
-func shouldAnonymize(dict *trie.Trie, span span) bool {
+func shouldAnonymize(dict *Dict, span span) bool {
 	word := span.word
 	if unicode.IsUpper(word[0]) {
 		if span.initial {
diff --git a/dictionaries.go b/dictionaries.go
index 63a6f9a..b683421 100644
--- a/dictionaries.go
+++ b/dictionaries.go
@@ -6,11 +6,11 @@ import (
 	"os"
 	"unicode"
 
-	"github.com/derekparker/trie"
+	"github.com/derekparker/trie/v3"
 )
 
 // Dictionary of words.
-type Dict = trie.Trie
+type Dict = trie.Trie[struct{}]
 
 const (
 	dictDir     = "/usr/share/dict/"
@@ -35,7 +35,7 @@ var languages = map[string]string{
 	"pt": "portuguese",
 	"es": "spanish",
 	"sv": "swedish",
-	"ua": "ukrainian",
+	"uk": "ukrainian",
 }
 
 func init() {
@@ -97,13 +97,13 @@ func loadDict(path string) (*Dict, error) {
 		return nil, fmt.Errorf("open %s: %v", path, err)
 	}
 	defer file.Close()
-	dict := trie.New()
+	dict := trie.New[struct{}]()
 	scanner := bufio.NewScanner(file)
 	// optionally, resize scanner's capacity for lines over 64K, see next example
 	for scanner.Scan() {
 		word := scanner.Text()
 		if isLower(word) {
-			dict.Add(word, nil)
+			dict.Add(word, struct{}{})
 		}
 	}
 	return dict, nil
diff --git a/go.mod b/go.mod
index ab0067b..fb290ff 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,8 @@
 module github.com/orsinium-labs/anonymizer
 
-go 1.23.0
+go 1.23.3
 
 require (
-	github.com/derekparker/trie v0.0.0-20230829180723-39f4de51ef7d
+	github.com/derekparker/trie/v3 v3.0.0-20240916174412-4095f8e392f7
 	github.com/matryer/is v1.4.1
 )
diff --git a/go.sum b/go.sum
index daab6eb..f9835ca 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
-github.com/derekparker/trie v0.0.0-20230829180723-39f4de51ef7d h1:hUWoLdw5kvo2xCsqlsIBMvWUc1QCSsCYD2J2+Fg6YoU=
-github.com/derekparker/trie v0.0.0-20230829180723-39f4de51ef7d/go.mod h1:C7Es+DLenIpPc9J6IYw4jrK0h7S9bKj4DNl8+KxGEXU=
+github.com/derekparker/trie/v3 v3.0.0-20240916174412-4095f8e392f7 h1:gsEwGHr/KBuoslhPtj+T2grgoV6puovmeTm1eupzDXg=
+github.com/derekparker/trie/v3 v3.0.0-20240916174412-4095f8e392f7/go.mod h1:P94lW0LPgiaMgKAEQD59IDZD2jMK9paKok8Nli/nQbE=
 github.com/matryer/is v1.4.1 h1:55ehd8zaGABKLXQUe2awZ99BD/PTc2ls+KV/dXphgEQ=
 github.com/matryer/is v1.4.1/go.mod h1:8I/i5uYgLzgsgEloJE1U6xx5HkBQpAZvepWuujKwMRU=