diff --git a/go.mod b/go.mod
index d0f5182..c37162f 100644
--- a/go.mod
+++ b/go.mod
@@ -4,5 +4,5 @@ go 1.24.0
 
 require (
 	github.com/cespare/xxhash/v2 v2.3.0
-	go.osspkg.com/casecheck v0.3.0
+	go.osspkg.com/casecheck v0.3.1
 )
diff --git a/go.sum b/go.sum
index c8c23eb..9f2f726 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,4 @@
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-go.osspkg.com/casecheck v0.3.0 h1:x15blEszElbrHrEH5H02JIIhGIg/lGZzIt1kQlD3pwM=
-go.osspkg.com/casecheck v0.3.0/go.mod h1:TRFXDMFJEOtnlp3ET2Hix3osbxwPWhvaiT/HfD3+gBA=
+go.osspkg.com/casecheck v0.3.1 h1:mxg1WaWy/tv7J05jvf5Idy3ydDYbac3gOOV9NPdjxvU=
+go.osspkg.com/casecheck v0.3.1/go.mod h1:TRFXDMFJEOtnlp3ET2Hix3osbxwPWhvaiT/HfD3+gBA=