diff --git a/packages.json b/packages.json
index 12124f3..000719f 100644
--- a/packages.json
+++ b/packages.json
@@ -34012,5 +34012,18 @@
     "description": "A simple runtime string interpolation library, that leverages nimjas lexer.",
     "license": "MIT",
     "web": "https://github.com/enthus1ast/formatja"
+  },
+  {
+    "name": "seiryu",
+    "url": "https://github.com/glassesneo/seiryu",
+    "method": "git",
+    "tags": [
+      "assertions",
+      "design-by-contract",
+      "metaprogramming"
+    ],
+    "description": "A nimble package for improving your Nim code",
+    "license": "MIT",
+    "web": "https://github.com/glassesneo/seiryu"
   }
 ]