diff --git a/testament/important_packages.nim b/testament/important_packages.nim
index d05b9385e93c2..aaf7b413831b6 100644
--- a/testament/important_packages.nim
+++ b/testament/important_packages.nim
@@ -154,6 +154,7 @@ pkg "sdl1", "nim c -r src/sdl.nim"
 pkg "sdl2_nim", "nim c -r sdl2/sdl.nim"
 pkg "serialization"
 pkg "sigv4", "nim c --mm:arc -r sigv4.nim", "https://github.com/disruptek/sigv4"
+pkg "silky"
 pkg "sim"
 pkg "smtp", "nimble compileExample"
 pkg "snip", "nimble test", "https://github.com/genotrance/snip"