diff --git a/testament/important_packages.nim b/testament/important_packages.nim
index a42c672340..30c205a64d 100644
--- a/testament/important_packages.nim
+++ b/testament/important_packages.nim
@@ -162,6 +162,6 @@ pkg "websocket", "nim c websocket.nim"
 pkg "winim", "nim c winim.nim"
 pkg "with"
 pkg "ws", allowFailure = true
-pkg "yaml", "nim c -r test/tserialization.nim"
+# pkg "yaml", "nim c -r test/tserialization.nim"
 pkg "zero_functional", "nim c -r -d:nimNoLentIterators test.nim"
 pkg "zippy"