diff --git a/.cspell.json b/.cspell.json
index ad88a31fff..9afbeb31b4 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -54,11 +54,14 @@
     "multiaddr",
     "multiaddresses",
     "multiaddrs",
+    "multicodec",
     "multicodecs",
+    "multiformats",
     "mplex",
     "multihashes",
     "muxed",
     "muxer",
+    "muxers",
     "mvps",
     "nodekey",
     "nwaku",
@@ -87,6 +90,7 @@
     "transpiled",
     "typedoc",
     "unencrypted",
+    "unmarshal",
     "unmount",
     "unmounts",
     "untracked",