diff --git a/package.json b/package.json
index 714baedc4..000ffca7a 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,6 @@
     "eslint": "^7.7.0",
     "eslint-plugin-ava": "^11.0.0",
     "eslint-plugin-compat": "^3.5.1",
-    "esm": "^3.2.25",
     "jquery": "^3.4.1",
     "jsdom": "^22.0.0",
     "maxmin": "^3.0.0",
diff --git a/yarn.lock b/yarn.lock
index 359c5cd79..c2ea60e8c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2468,11 +2468,6 @@ eslint@^7.7.0:
     text-table "^0.2.0"
     v8-compile-cache "^2.0.3"
 
-esm@^3.2.25:
-  version "3.2.25"
-  resolved "https://registry.yarnpkg.com/esm/-/esm-3.2.25.tgz#342c18c29d56157688ba5ce31f8431fbb795cc10"
-  integrity sha512-U1suiZ2oDVWv4zPO56S0NcR5QriEahGtdN2OR6FiOG4WJvcjBVFB0qI4+eKoWFH483PKGuLuu6V8Z4T5g63UVA==
-
 espree@^7.2.0:
   version "7.3.0"
   resolved "https://registry.yarnpkg.com/espree/-/espree-7.3.0.tgz#dc30437cf67947cf576121ebd780f15eeac72348"