Use `pandoc_variable_arg` to create argument to pandoc CLI
diff --git a/DESCRIPTION b/DESCRIPTION
index 5a8a41b..4c9636b 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -31,7 +31,7 @@
 Depends:
     R (>= 3.0)
 Imports:
-    rmarkdown (>= 1.0)
+    rmarkdown (>= 1.7)
 Suggests:
     bslib,
     testthat (>= 3.0.0)