diff --git a/README.md b/README.md
index de9a846..74eb608 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,10 @@
 
 sharks
 
+third party packages used so far
+ - `curly-fn` and `threading`: all
+ - `graph`: day 7 +
+
 ## a guide to this repo
 
 ### `(pregexp #px"([0-9]+).rkt" (list _ day))`
diff --git a/scripts/aoc.rkt b/scripts/aoc.rkt
index 9401746..acacd3b 100644
--- a/scripts/aoc.rkt
+++ b/scripts/aoc.rkt
@@ -2,8 +2,8 @@
 
 ;; utilities for every challenge script
 
-(require "aoc-lib.rkt" threading syntax/parse/define (for-syntax racket/syntax))
-(provide answer dbg (all-from-out threading syntax/parse/define)
+(require "aoc-lib.rkt" threading syntax/parse/define (for-syntax racket/syntax) graph)
+(provide answer dbg (all-from-out threading syntax/parse/define graph)
          (for-syntax (all-from-out racket/syntax)))
 
 ;; in-expression debug print, uwu