diff --git a/go.mod b/go.mod
index a02b3d5..bda5e0c 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/stillmatic/gollum
 go 1.20
 
 require (
-	github.com/antonmedv/expr v1.15.3
+	github.com/antonmedv/expr v1.15.4
 	github.com/chewxy/math32 v1.10.1
 	github.com/google/uuid v1.4.0
 	github.com/invopop/jsonschema v0.12.0
diff --git a/go.sum b/go.sum
index f63e0d0..62d42de 100644
--- a/go.sum
+++ b/go.sum
@@ -10,6 +10,8 @@ cloud.google.com/go/storage v1.31.0 h1:+S3LjjEN2zZ+L5hOwj4+1OkGCsLVe0NzpXKQ1pSdT
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/antonmedv/expr v1.15.3 h1:q3hOJZNvLvhqE8OHBs1cFRdbXFNKuA+bHmRaI+AmRmI=
 github.com/antonmedv/expr v1.15.3/go.mod h1:0E/6TxnOlRNp81GMzX9QfDPAmHo2Phg00y4JUv1ihsE=
+github.com/antonmedv/expr v1.15.4 h1:CrNads8WDnDVJNWt/FeUINBO+vDNjurEwT7SoQN132o=
+github.com/antonmedv/expr v1.15.4/go.mod h1:0E/6TxnOlRNp81GMzX9QfDPAmHo2Phg00y4JUv1ihsE=
 github.com/aws/aws-sdk-go v1.44.314 h1:d/5Jyk/Fb+PBd/4nzQg0JuC2W4A0knrDIzBgK/ggAow=
 github.com/aws/aws-sdk-go-v2 v1.20.0 h1:INUDpYLt4oiPOJl0XwZDK2OVAVf0Rzo+MGVTv9f+gy8=
 github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.11 h1:/MS8AzqYNAhhRNalOmxUvYs8VEbNGifTnzhPFdcRQkQ=