diff --git a/package.json b/package.json
index 33eeec328..e82007f5b 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
     "ember-maybe-import-regenerator": "0.1.6",
     "ember-qunit": "4.6.0",
     "ember-resolver": "8.0.2",
-    "ember-source": "3.26.1",
+    "ember-source": "3.27.1",
     "ember-try": "1.4.0",
     "eslint": "7.26.0",
     "eslint-config-prettier": "8.3.0",
diff --git a/yarn.lock b/yarn.lock
index 8b450628a..ded77f102 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1359,10 +1359,10 @@
   resolved "https://registry.yarnpkg.com/@glimmer/util/-/util-0.42.2.tgz#9ca1631e42766ea6059f4b49d0bdfb6095aad2c4"
   integrity sha512-Heck0baFSaWDanCYtmOcLeaz7v+rSqI8ovS7twrp2/FWEteb3Ze5sWQ2BEuSAG23L/k/lzVwYM/MY7ZugxBpaA==
 
-"@glimmer/vm-babel-plugins@0.77.5":
-  version "0.77.5"
-  resolved "https://registry.yarnpkg.com/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.77.5.tgz#daffb6507aa6b08ec36f69d652897d339fdd0007"
-  integrity sha512-jTBM7fJMrIEy4/bCeI8e7ypR+AuWYzLA+KORCGbnTJtL/NYg4G8qwhQAZBtg1d3KmoqyqaCsyqE6f4/tzJO4eQ==
+"@glimmer/vm-babel-plugins@0.78.2":
+  version "0.78.2"
+  resolved "https://registry.yarnpkg.com/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.78.2.tgz#b530a19f54da385c7099a22cf348e9062d186838"
+  integrity sha512-GSEf16h6OCtKx7PsSvD21cLXZuVc6swW2rSOAvfLeZco1DEWMRgYTwkCkColydKZcQ3gvwbPBeYwTC2K6tlnjg==
   dependencies:
     babel-plugin-debug-macros "^0.3.4"
 
@@ -6494,16 +6494,16 @@ ember-source-channel-url@^3.0.0:
   dependencies:
     node-fetch "^2.6.0"
 
-ember-source@3.26.1:
-  version "3.26.1"
-  resolved "https://registry.yarnpkg.com/ember-source/-/ember-source-3.26.1.tgz#8c9e8a314fb0da447b944d64f9d92a80a628d7b5"
-  integrity sha512-5/NATBo5h9m1N52ITVksmjtGlYhGHLl4lDErAWv5/DC9zYe9ZR93NtymR6PEqrRilXc2x0KWd3NlOsWUoJRUOw==
+ember-source@3.27.1:
+  version "3.27.1"
+  resolved "https://registry.yarnpkg.com/ember-source/-/ember-source-3.27.1.tgz#7348d4ff66ce1baf8e25efb2bc70df39b52e88b8"
+  integrity sha512-gBYsWz6eCFWSvdQvteal7LpXmCfUn64cKpZ3OIYeJGuXgl6akg34mCsYltUPdybAxRJzDkJeksTF9WnqqbXmMw==
   dependencies:
     "@babel/helper-module-imports" "^7.8.3"
     "@babel/plugin-transform-block-scoping" "^7.8.3"
     "@babel/plugin-transform-object-assign" "^7.8.3"
     "@ember/edition-utils" "^1.2.0"
-    "@glimmer/vm-babel-plugins" "0.77.5"
+    "@glimmer/vm-babel-plugins" "0.78.2"
     babel-plugin-debug-macros "^0.3.3"
     babel-plugin-filter-imports "^4.0.0"
     broccoli-concat "^4.2.4"