diff --git a/package.json b/package.json
index 775e938c..150f003c 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "ember-cli-babel": "^7.11.0",
     "ember-cli-blueprint-test-helpers": "^0.19.1",
     "ember-cli-dependency-checker": "^3.2.0",
-    "ember-cli-htmlbars": "^3.1.0",
+    "ember-cli-htmlbars": "^4.2.1",
     "ember-cli-htmlbars-inline-precompile": "^2.0.0",
     "ember-cli-inject-live-reload": "^2.0.0",
     "ember-cli-qunit": "^4.3.2",
diff --git a/yarn.lock b/yarn.lock
index bdcf50d7..c8975ae9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -841,6 +841,11 @@
   resolved "https://registry.yarnpkg.com/@ember-data/rfc395-data/-/rfc395-data-0.0.4.tgz#ecb86efdf5d7733a76ff14ea651a1b0ed1f8a843"
   integrity sha512-tGRdvgC9/QMQSuSuJV45xoyhI0Pzjm7A9o/MVVA3HakXIImJbbzx/k/6dO9CUEQXIyS2y0fW6C1XaYOG7rY0FQ==
 
+"@ember/edition-utils@^1.2.0":
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/@ember/edition-utils/-/edition-utils-1.2.0.tgz#a039f542dc14c8e8299c81cd5abba95e2459cfa6"
+  integrity sha512-VmVq/8saCaPdesQmftPqbFtxJWrzxNGSQ+e8x8LLe3Hjm36pJ04Q8LeORGZkAeOhldoUX9seLGmSaHeXkIqoog==
+
 "@ember/test-helpers@^0.7.26":
   version "0.7.26"
   resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-0.7.26.tgz#ae11cbde9cce2c872abbea6edcd849a31dd7bd1e"
@@ -1429,6 +1434,11 @@ babel-plugin-htmlbars-inline-precompile@^1.0.0:
   resolved "https://registry.yarnpkg.com/babel-plugin-htmlbars-inline-precompile/-/babel-plugin-htmlbars-inline-precompile-1.0.0.tgz#a9d2f6eaad8a3f3d361602de593a8cbef8179c22"
   integrity sha512-4jvKEHR1bAX03hBDZ94IXsYCj3bwk9vYsn6ux6JZNL2U5pvzCWjqyrGahfsGNrhERyxw8IqcirOi9Q6WCo3dkQ==
 
+babel-plugin-htmlbars-inline-precompile@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-htmlbars-inline-precompile/-/babel-plugin-htmlbars-inline-precompile-3.0.1.tgz#e1e38a4087f446578e419a21c112530c8df02345"
+  integrity sha512-ZiFY0nQjtdMPGIDwp/5LYOs6rCr54QfcSV5nPbrA7C++Fv4Vb2Q/qrKYx78t+dwmARJztnOBlObFk4z8veHxNA==
+
 babel-plugin-module-resolver@^3.1.1, babel-plugin-module-resolver@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-module-resolver/-/babel-plugin-module-resolver-3.2.0.tgz#ddfa5e301e3b9aa12d852a9979f18b37881ff5a7"
@@ -2291,11 +2301,28 @@ broccoli-module-unification-reexporter@^1.0.0:
     mkdirp "^0.5.1"
     walk-sync "^0.3.2"
 
+broccoli-node-api@^1.6.0, broccoli-node-api@^1.7.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/broccoli-node-api/-/broccoli-node-api-1.7.0.tgz#391aa6edecd2a42c63c111b4162956b2fa288cb6"
+  integrity sha512-QIqLSVJWJUVOhclmkmypJJH9u9s/aWH4+FH6Q6Ju5l+Io4dtwqdPUNmDfw40o6sxhbZHhqGujDJuHTML1wG8Yw==
+
 broccoli-node-info@1.1.0, broccoli-node-info@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/broccoli-node-info/-/broccoli-node-info-1.1.0.tgz#3aa2e31e07e5bdb516dd25214f7c45ba1c459412"
   integrity sha1-OqLjHgflvbUW3SUhT3xFuhxFlBI=
 
+broccoli-node-info@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/broccoli-node-info/-/broccoli-node-info-2.1.0.tgz#ca84560e8570ff78565bea1699866ddbf58ad644"
+  integrity sha512-l6qDuboJThHfRVVWQVaTs++bFdrFTP0gJXgsWenczc1PavRVUmL1Eyb2swTAXXMpDOnr2zhNOBLx4w9AxkqbPQ==
+
+broccoli-output-wrapper@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/broccoli-output-wrapper/-/broccoli-output-wrapper-2.0.0.tgz#f1e0b9b2f259a67fd41a380141c3c20b096828e6"
+  integrity sha512-V/ozejo+snzNf75i/a6iTmp71k+rlvqjE3+jYfimuMwR1tjNNRdtfno+NGNQB2An9bIAeqZnKhMDurAznHAdtA==
+  dependencies:
+    heimdalljs-logger "^0.1.10"
+
 broccoli-persistent-filter@^1.1.6, broccoli-persistent-filter@^1.4.3:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/broccoli-persistent-filter/-/broccoli-persistent-filter-1.4.3.tgz#3511bc52fc53740cda51621f58a28152d9911bc1"
@@ -2345,21 +2372,24 @@ broccoli-plugin@1.1.0:
     rimraf "^2.3.4"
     symlink-or-copy "^1.0.1"
 
-broccoli-plugin@^1.0.0, broccoli-plugin@^1.2.0, broccoli-plugin@^1.2.1, broccoli-plugin@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/broccoli-plugin/-/broccoli-plugin-1.3.0.tgz#bee704a8e42da08cb58e513aaa436efb7f0ef1ee"
-  integrity sha1-vucEqOQtoIy1jlE6qkNu+38O8e4=
+broccoli-plugin@^1.0.0, broccoli-plugin@^1.2.0, broccoli-plugin@^1.2.1, broccoli-plugin@^1.3.0, broccoli-plugin@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/broccoli-plugin/-/broccoli-plugin-1.3.1.tgz#a26315732fb99ed2d9fb58f12a1e14e986b4fabd"
+  integrity sha512-DW8XASZkmorp+q7J4EeDEZz+LoyKLAd2XZULXyD9l4m9/hAKV3vjHmB1kiUshcWAYMgTP1m2i4NnqCE/23h6AQ==
   dependencies:
     promise-map-series "^0.2.1"
     quick-temp "^0.1.3"
     rimraf "^2.3.4"
     symlink-or-copy "^1.1.8"
 
-broccoli-plugin@^1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/broccoli-plugin/-/broccoli-plugin-1.3.1.tgz#a26315732fb99ed2d9fb58f12a1e14e986b4fabd"
-  integrity sha512-DW8XASZkmorp+q7J4EeDEZz+LoyKLAd2XZULXyD9l4m9/hAKV3vjHmB1kiUshcWAYMgTP1m2i4NnqCE/23h6AQ==
+broccoli-plugin@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/broccoli-plugin/-/broccoli-plugin-3.1.0.tgz#54ba6dd90a42ec3db5624063292610e326b1e542"
+  integrity sha512-7w7FP8WJYjLvb0eaw27LO678TGGaom++49O1VYIuzjhXjK5kn2+AMlDm7CaUFw4F7CLGoVQeZ84d8gICMJa4lA==
   dependencies:
+    broccoli-node-api "^1.6.0"
+    broccoli-output-wrapper "^2.0.0"
+    fs-merger "^3.0.1"
     promise-map-series "^0.2.1"
     quick-temp "^0.1.3"
     rimraf "^2.3.4"
@@ -2912,7 +2942,7 @@ commander@~2.17.1:
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
   integrity sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==
 
-common-tags@^1.4.0:
+common-tags@^1.4.0, common-tags@^1.8.0:
   version "1.8.0"
   resolved "https://registry.yarnpkg.com/common-tags/-/common-tags-1.8.0.tgz#8e3153e542d4a39e9b10554434afaaf98956a937"
   integrity sha512-6P6g0uetGpW/sdyUy/iQQCbFF0kWVMSIVSyYz7Zgjcgh8mgw8PQzDNZeyZ5DQ2gM7LBoZPHmnjz8rUthkBG5tw==
@@ -3478,15 +3508,25 @@ ember-cli-htmlbars-inline-precompile@^2.0.0:
     heimdalljs-logger "^0.1.9"
     silent-error "^1.1.0"
 
-ember-cli-htmlbars@^3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-3.1.0.tgz#87806c2a0bca2ab52d4fb8af8e2215c1ca718a99"
-  integrity sha512-cgvRJM73IT0aePUG7oQ/afB7vSRBV3N0wu9BrWhHX2zkR7A7cUBI7KC9VPk6tbctCXoM7BRGsCC4aIjF7yrfXA==
+ember-cli-htmlbars@^4.2.1:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-4.2.1.tgz#c74c5deba6025c8e80d84289a88901073e1ca1f7"
+  integrity sha512-jZ9LYO4R6ieYC5Bcei4RWbK2/SY0LDQ5cUIyt9YQpN/VU7A9G+es9w7FJYfHtDD+TxvaXDKMuXAeBwOz+mZKPA==
   dependencies:
+    "@ember/edition-utils" "^1.2.0"
+    babel-plugin-htmlbars-inline-precompile "^3.0.1"
+    broccoli-debug "^0.6.5"
     broccoli-persistent-filter "^2.3.1"
+    broccoli-plugin "^3.1.0"
+    common-tags "^1.8.0"
+    ember-cli-babel-plugin-helpers "^1.1.0"
+    fs-tree-diff "^2.0.1"
     hash-for-dep "^1.5.1"
+    heimdalljs-logger "^0.1.10"
     json-stable-stringify "^1.0.1"
-    strip-bom "^3.0.0"
+    semver "^7.0.0"
+    strip-bom "^4.0.0"
+    walk-sync "^2.0.2"
 
 ember-cli-inject-live-reload@^2.0.0:
   version "2.0.1"
@@ -4622,7 +4662,7 @@ fs-extra@^7.0.0, fs-extra@^7.0.1:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
-fs-extra@^8.1.0:
+fs-extra@^8.0.1, fs-extra@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-8.1.0.tgz#49d43c45a88cd9677668cb7be1b46efdb8d2e1c0"
   integrity sha512-yhlQgA6mnOJUKOsRUFsgJdQCvkKhcz8tlZG5HBQfReYZy46OwLcY+Zia0mtdHsOo9y/hP+CxMN0TU9QxoOtG4g==
@@ -4631,6 +4671,18 @@ fs-extra@^8.1.0:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
+fs-merger@^3.0.1:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/fs-merger/-/fs-merger-3.0.2.tgz#bf111334b89b8d65b95580d33c587dc79620a4e3"
+  integrity sha512-63wmgjPDClP5XcTSKdIXz66X5paYy/m2Ymq5c5YpGxRQEk1HFZ8rtti3LMNSOSw1ketbBMGbSFFcQeEnpnzDpQ==
+  dependencies:
+    broccoli-node-api "^1.7.0"
+    broccoli-node-info "^2.1.0"
+    fs-extra "^8.0.1"
+    fs-tree-diff "^2.0.1"
+    rimraf "^2.6.3"
+    walk-sync "^2.0.2"
+
 fs-sync@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/fs-sync/-/fs-sync-1.0.4.tgz#2f94eade31862ec0a9f33a1c2546dfb1a3f3d1ae"
@@ -4662,7 +4714,7 @@ fs-tree-diff@^1.0.2:
     path-posix "^1.0.0"
     symlink-or-copy "^1.1.8"
 
-fs-tree-diff@^2.0.0:
+fs-tree-diff@^2.0.0, fs-tree-diff@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/fs-tree-diff/-/fs-tree-diff-2.0.1.tgz#343e4745ab435ec39ebac5f9059ad919cd034afa"
   integrity sha512-x+CfAZ/lJHQqwlD64pYM5QxWjzWhSjroaVsr8PW831zOApL55qPibed0c+xebaLWVr2BnHFoHdrwOv8pzt8R5A==
@@ -6328,6 +6380,14 @@ matcher-collection@^1.0.0, matcher-collection@^1.0.5, matcher-collection@^1.1.1:
   dependencies:
     minimatch "^3.0.2"
 
+matcher-collection@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/matcher-collection/-/matcher-collection-2.0.1.tgz#90be1a4cf58d6f2949864f65bb3b0f3e41303b29"
+  integrity sha512-daE62nS2ZQsDg9raM0IlZzLmI2u+7ZapXBwdoeBUKAYERPDDIc0qNqA8E0Rp2D+gspKR7BgIFP52GeujaGXWeQ==
+  dependencies:
+    "@types/minimatch" "^3.0.3"
+    minimatch "^3.0.2"
+
 md5-hex@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/md5-hex/-/md5-hex-2.0.0.tgz#d0588e9f1c74954492ecd24ac0ac6ce997d92e33"
@@ -7792,6 +7852,11 @@ semver@^6.0.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
+semver@^7.0.0:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.1.1.tgz#29104598a197d6cbe4733eeecbe968f7b43a9667"
+  integrity sha512-WfuG+fl6eh3eZ2qAf6goB7nhiCd7NPXhmyFxigB/TOkQyeLP8w8GsVehvtGNtnNmyboz4TgeK40B1Kbql/8c5A==
+
 send@0.17.1:
   version "0.17.1"
   resolved "https://registry.yarnpkg.com/send/-/send-0.17.1.tgz#c1d8b059f7900f7466dd4938bdc44e11ddb376c8"
@@ -8271,10 +8336,10 @@ strip-ansi@^5.1.0:
   dependencies:
     ansi-regex "^4.1.0"
 
-strip-bom@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-3.0.0.tgz#2334c18e9c759f7bdd56fdef7e9ae3d588e68ed3"
-  integrity sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=
+strip-bom@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-4.0.0.tgz#9c3505c1db45bcedca3d9cf7a16f5c5aa3901878"
+  integrity sha512-3xurFv5tEgii33Zi8Jtp55wEIILR9eh34FAW00PZf+JnSsTmV/ioewSgQl97JHvgjoRGwPShsWm+IdrxB35d0w==
 
 strip-eof@^1.0.0:
   version "1.0.0"
@@ -8845,6 +8910,15 @@ walk-sync@^1.0.0, walk-sync@^1.1.3:
     ensure-posix-path "^1.1.0"
     matcher-collection "^1.1.1"
 
+walk-sync@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/walk-sync/-/walk-sync-2.0.2.tgz#5ea8a28377c8be68c92d50f4007ea381725da14b"
+  integrity sha512-dCZkrxfHjPn7tIvdYrX3uMD/R0beVrHpA8lROQ5wWrl8psJgR6xwCkwqTFes0dNujbS2o/ITpvSYgIFsLsf13A==
+  dependencies:
+    "@types/minimatch" "^3.0.3"
+    ensure-posix-path "^1.1.0"
+    matcher-collection "^2.0.0"
+
 walker@~1.0.5:
   version "1.0.7"
   resolved "https://registry.yarnpkg.com/walker/-/walker-1.0.7.tgz#2f7f9b8fd10d677262b18a884e28d19618e028fb"