diff --git a/go.mod b/go.mod
index ec8f7ce..b69bfbb 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.16
 
 require (
 	github.com/tidwall/assert v0.1.0
-	github.com/tidwall/btree v0.7.1
+	github.com/tidwall/btree v1.1.0
 	github.com/tidwall/gjson v1.12.1
 	github.com/tidwall/grect v0.1.4
 	github.com/tidwall/lotsa v1.0.2
diff --git a/go.sum b/go.sum
index caf3451..5da3659 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,7 @@
 github.com/tidwall/assert v0.1.0 h1:aWcKyRBUAdLoVebxo95N7+YZVTFF/ASTr7BN4sLP6XI=
 github.com/tidwall/assert v0.1.0/go.mod h1:QLYtGyeqse53vuELQheYl9dngGCJQ+mTtlxcktb+Kj8=
-github.com/tidwall/btree v0.7.1 h1:LPXN3VRIxsdMwyfbtPgOA60jLuj/eEmMpDjOh2szRPw=
-github.com/tidwall/btree v0.7.1/go.mod h1:TzIRzen6yHbibdSfK6t8QimqbUnoxUSrZfeW7Uob0q4=
+github.com/tidwall/btree v1.1.0 h1:5P+9WU8ui5uhmcg3SoPyTwoI0mVyZ1nps7YQzTZFkYM=
+github.com/tidwall/btree v1.1.0/go.mod h1:TzIRzen6yHbibdSfK6t8QimqbUnoxUSrZfeW7Uob0q4=
 github.com/tidwall/gjson v1.12.1 h1:ikuZsLdhr8Ws0IdROXUS1Gi4v9Z4pGqpX/CvJkxvfpo=
 github.com/tidwall/gjson v1.12.1/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
 github.com/tidwall/grect v0.1.4 h1:dA3oIgNgWdSspFzn1kS4S/RDpZFLrIxAZOdJKjYapOg=