diff --git a/go.mod b/go.mod
index 0bbb53a..8ea591b 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ retract (
 )
 
 require (
-	github.com/buildkite/interpolate v0.1.3
+	github.com/buildkite/interpolate v0.1.4
 	github.com/google/go-cmp v0.6.0
 	github.com/gowebpki/jcs v1.0.1
 	github.com/lestrrat-go/jwx/v2 v2.1.1
diff --git a/go.sum b/go.sum
index f2b5dd0..96e464d 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/buildkite/interpolate v0.1.3 h1:OFEhqji1rNTRg0u9DsSodg63sjJQEb1uWbENq9fUOBM=
-github.com/buildkite/interpolate v0.1.3/go.mod h1:UNVe6A+UfiBNKbhAySrBbZFZFxQ+DXr9nWen6WVt/A8=
+github.com/buildkite/interpolate v0.1.4 h1:qacB5WR+7+Ol1xiJ4xZajHh/CGDdhcMesXR+V3thZPA=
+github.com/buildkite/interpolate v0.1.4/go.mod h1:dHnrwHew5O8VNOAgMDpwRlFnhL5VSN6M1bHVmRZ9Ccc=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=