diff --git a/go.mod b/go.mod
index 1875c4b..fdbcd15 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/polds/expr-playground
 go 1.21
 
 require (
-	github.com/expr-lang/expr v1.16.4
+	github.com/expr-lang/expr v1.16.9
 	github.com/google/go-cmp v0.6.0
 	github.com/stretchr/testify v1.9.0
 	gopkg.in/yaml.v3 v3.0.1
diff --git a/go.sum b/go.sum
index 414213a..b49dfdc 100644
--- a/go.sum
+++ b/go.sum
@@ -1,8 +1,8 @@
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/expr-lang/expr v1.16.4 h1:1Mq5RHw5T5jxXMUvyb+eT546mJREm1yFyNHkybYQ81c=
-github.com/expr-lang/expr v1.16.4/go.mod h1:uCkhfG+x7fcZ5A5sXHKuQ07jGZRl6J0FCAaf2k4PtVQ=
+github.com/expr-lang/expr v1.16.9 h1:WUAzmR0JNI9JCiF0/ewwHB1gmcGw5wW7nWt8gc6PpCI=
+github.com/expr-lang/expr v1.16.9/go.mod h1:8/vRC7+7HBzESEqt5kKpYXxrxkr31SaO8r40VO/1IT4=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=