diff --git a/DESCRIPTION b/DESCRIPTION
index 1f95f0c..0212c64 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -16,7 +16,7 @@ BugReports: https://github.com/mrc-ide/naomi.options/issues
 Additional_repositories: https://mrc-ide.r-universe.dev
 Imports:
     data.table,
-    glue,
+    glue (>= 1.8.0),
     jsonlite,
     traduire (>= 0.0.5),
 Suggests:
diff --git a/R/utils.R b/R/utils.R
index da5c633..eafa76c 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -38,10 +38,9 @@ recursive_scalar <- function(x) {
 #' @keywords internal
 #'
 build_json <- function(options_template, params) {
-  param_env <- list2env(params, parent = .GlobalEnv)
   tryCatch(
-    glue::glue(options_template, .envir = param_env, .open = '"<+',
-               .close = '+>"', .transformer = json_transformer),
+    glue::glue_data(params, options_template, .open = '"<+',
+                    .close = '+>"', .transformer = json_transformer),
     error = function(e) {
       e$message <- t_("MODEL_OPTIONS_FAIL", list(message = e$message))
       stop(e)