diff --git a/testament/important_packages.nim b/testament/important_packages.nim
index 5a9775bad2..dca8c5a4fd 100644
--- a/testament/important_packages.nim
+++ b/testament/important_packages.nim
@@ -44,7 +44,8 @@ pkg1 "glob"
 pkg1 "ggplotnim", "nim c -d:noCairo -r tests/tests.nim"
 # pkg1 "gittyup", "nimble test", "https://github.com/disruptek/gittyup"
 pkg1 "gnuplot", "nim c gnuplot.nim"
-pkg1 "gram", "nim c -r --gc:arc --define:danger tests/test.nim", "https://github.com/disruptek/gram"
+# pkg1 "gram", "nim c -r --gc:arc --define:danger tests/test.nim", "https://github.com/disruptek/gram"
+  # pending https://github.com/nim-lang/Nim/issues/16509
 pkg1 "hts", "nim c -o:htss src/hts.nim"
 # pkg1 "httpauth"
 pkg1 "illwill", "nimble examples"