diff --git a/package.json b/package.json
index 1597478..0f56040 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "ember-try": "^1.4.0",
     "eslint": "^7.23.0",
     "eslint-config-prettier": "^8.1.0",
-    "eslint-plugin-ember": "^10.3.0",
+    "eslint-plugin-ember": "^11.0.4",
     "eslint-plugin-node": "^11.1.0",
     "eslint-plugin-prettier": "^3.3.1",
     "lerna-changelog": "^1.0.1",
diff --git a/yarn.lock b/yarn.lock
index 08f5e32..a311c2a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3854,13 +3854,13 @@ crypto-random-string@^2.0.0:
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-2.0.0.tgz#ef2a7a966ec11083388369baa02ebead229b30d5"
   integrity sha512-v1plID3y9r/lPhviJ1wrXpLeyUIGAZ2SHNYTEapm7/8A9nLPoyvVp3RK/EPFqn5kEznyWgYZNsRtYYIWbuG8KA==
 
-css-tree@^1.0.0-alpha.39:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-1.1.3.tgz#eb4870fb6fd7707327ec95c2ff2ab09b5e8db91d"
-  integrity sha512-tRpdppF7TRazZrjJ6v3stzv93qxRcSsFmW6cX0Zm2NVKpxE1WV1HblnghVv9TreireHkqI/VDEsfolRF1p6y7Q==
+css-tree@^2.0.4:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-2.1.0.tgz#170e27ccf94e7c5facb183765c25898be843d1d2"
+  integrity sha512-PcysZRzToBbrpoUrZ9qfblRIRf8zbEAkU0AIpQFtgkFK0vSbzOmBCvdSAx2Zg7Xx5wiYJKUKk0NMP7kxevie/A==
   dependencies:
-    mdn-data "2.0.14"
-    source-map "^0.6.1"
+    mdn-data "2.0.27"
+    source-map-js "^1.0.1"
 
 dag-map@^2.0.2:
   version "2.0.2"
@@ -4802,15 +4802,16 @@ eslint-config-prettier@^8.1.0:
   resolved "https://registry.yarnpkg.com/eslint-config-prettier/-/eslint-config-prettier-8.3.0.tgz#f7471b20b6fe8a9a9254cc684454202886a2dd7a"
   integrity sha512-BgZuLUSeKzvlL/VUjx/Yb787VQ26RU3gGjA3iiFvdsp/2bMfVIWUVP7tjxtjS0e+HP409cPlPvNkQloz8C91ew==
 
-eslint-plugin-ember@^10.3.0:
-  version "10.5.0"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-ember/-/eslint-plugin-ember-10.5.0.tgz#f2a9e8286dcc026287501bcca4f587af1a7363f5"
-  integrity sha512-i9+zPBgVKH0Goe6/BCY06+Nzjf72vBzWerdtn5YzAXwVbX+O3fZHXKfTwtNS64o/4F+0HyJ356EisD1PuUQGLA==
+eslint-plugin-ember@^11.0.4:
+  version "11.0.4"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-ember/-/eslint-plugin-ember-11.0.4.tgz#7504b661bca9eb7229aad8c15359511b58517e7c"
+  integrity sha512-zW9K9xRgt503TMHjmtGRW2OFtLimUgEEGj3Z2LHn6vVuMh0hglPKjI39Cgx/SkoZvBjxN6PB6N+M0qDBQGIlBw==
   dependencies:
     "@ember-data/rfc395-data" "^0.0.4"
-    css-tree "^1.0.0-alpha.39"
+    css-tree "^2.0.4"
     ember-rfc176-data "^0.3.15"
     eslint-utils "^3.0.0"
+    estraverse "^5.2.0"
     lodash.kebabcase "^4.1.1"
     requireindex "^1.2.0"
     snake-case "^3.0.3"
@@ -7507,10 +7508,10 @@ mdast-util-to-string@^2.0.0:
   resolved "https://registry.yarnpkg.com/mdast-util-to-string/-/mdast-util-to-string-2.0.0.tgz#b8cfe6a713e1091cb5b728fc48885a4767f8b97b"
   integrity sha512-AW4DRS3QbBayY/jJmD8437V1Gombjf8RSOUCMFBuo5iHi58AGEgVCKQ+ezHkZZDpAQS75hcBMpLqjpJTjtUL7w==
 
-mdn-data@2.0.14:
-  version "2.0.14"
-  resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.14.tgz#7113fc4281917d63ce29b43446f701e68c25ba50"
-  integrity sha512-dn6wd0uw5GsdswPFfsgMp5NSB0/aDe6fK94YJV/AJDYXL6HVLWBsxeq7js7Ad+mU2K9LAlwpk6kN2D5mwCPVow==
+mdn-data@2.0.27:
+  version "2.0.27"
+  resolved "https://registry.yarnpkg.com/mdn-data/-/mdn-data-2.0.27.tgz#1710baa7b0db8176d3b3d565ccb7915fc69525ab"
+  integrity sha512-kwqO0I0jtWr25KcfLm9pia8vLZ8qoAKhWZuZMbneJq3jjBD3gl5nZs8l8Tu3ZBlBAHVQtDur9rdDGyvtfVraHQ==
 
 mdurl@^1.0.1:
   version "1.0.1"
@@ -9555,6 +9556,11 @@ sort-package-json@^1.48.0:
     is-plain-obj "2.1.0"
     sort-object-keys "^1.1.3"
 
+source-map-js@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
+  integrity sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==
+
 source-map-resolve@^0.5.0:
   version "0.5.3"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.3.tgz#190866bece7553e1f8f267a2ee82c606b5509a1a"