diff --git a/package.json b/package.json
index 8ff402d..44816ea 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "broccoli-stew": "^2.0.0",
     "ember-cli-babel": "^7.11.0",
     "ember-cli-clipboard": "^0.12.0",
-    "ember-cli-htmlbars": "^2.0.1",
+    "ember-cli-htmlbars": "^4.0.5",
     "ember-cli-string-utils": "^1.1.0",
     "ember-composable-helpers": "^2.3.1",
     "ember-truth-helpers": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index 1a5e6c0..7f5942e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -842,6 +842,11 @@
   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@^1.1.1":
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/@ember/edition-utils/-/edition-utils-1.1.1.tgz#d5732c3da593f202e6e1ac6dbee56a758242403f"
+  integrity sha512-GEhri78jdQp/xxPpM6z08KlB0wrHfnfrJ9dmQk7JeQ4XCiMzXsJci7yooQgg/IcTKCM/PxE/IkGCQAo80adMkw==
+
 "@ember/test-helpers@^0.7.26":
   version "0.7.27"
   resolved "https://registry.yarnpkg.com/@ember/test-helpers/-/test-helpers-0.7.27.tgz#c622cabd0cbb95b34efc1e1b6274ab5a14edc138"
@@ -1530,6 +1535,11 @@ 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@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-htmlbars-inline-precompile/-/babel-plugin-htmlbars-inline-precompile-3.0.0.tgz#95aa0d2379347cda9a7127c028fe35cb39179fa2"
+  integrity sha512-dR12lOqIcBLOTwgnI5iG+bSrZhR8JIZ7zAHW43YhcD5q8G8iipvSuRo8Fah6NPPh6C8cATd827bgPikphbF09w==
+
 babel-plugin-module-resolver@^3.1.1:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-module-resolver/-/babel-plugin-module-resolver-3.2.0.tgz#ddfa5e301e3b9aa12d852a9979f18b37881ff5a7"
@@ -2405,6 +2415,11 @@ broccoli-module-unification-reexporter@^1.0.0:
     mkdirp "^0.5.1"
     walk-sync "^0.3.2"
 
+broccoli-node-api@^1.6.0:
+  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"
@@ -2429,16 +2444,16 @@ broccoli-persistent-filter@^1.1.6, broccoli-persistent-filter@^1.2.13, broccoli-
     symlink-or-copy "^1.0.1"
     walk-sync "^0.3.1"
 
-broccoli-persistent-filter@^2.1.0, broccoli-persistent-filter@^2.1.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/broccoli-persistent-filter/-/broccoli-persistent-filter-2.2.1.tgz#d2a911ec02ebbbcfb382242c517159cb7a9c10d7"
-  integrity sha512-07rUlzzhsyrly4Waq/eMK/fhWcN3g0txirzx4EKqQ9pF4w+XXI/oRPibRyHRa5NL6DfNGC54fPFRwMYHjjm5nw==
+broccoli-persistent-filter@^2.1.0, broccoli-persistent-filter@^2.1.1, broccoli-persistent-filter@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/broccoli-persistent-filter/-/broccoli-persistent-filter-2.3.1.tgz#4a052e0e0868b344c3a2977e35a3d497aa9eca72"
+  integrity sha512-hVsmIgCDrl2NFM+3Gs4Cr2TA6UPaIZip99hN8mtkaUPgM8UeVnCbxelCvBjUBHo0oaaqP5jzqqnRVvb568Yu5g==
   dependencies:
     async-disk-cache "^1.2.1"
     async-promise-queue "^1.0.3"
     broccoli-plugin "^1.0.0"
-    fs-tree-diff "^1.0.2"
-    hash-for-dep "^1.0.2"
+    fs-tree-diff "^2.0.0"
+    hash-for-dep "^1.5.0"
     heimdalljs "^0.2.1"
     heimdalljs-logger "^0.1.7"
     mkdirp "^0.5.1"
@@ -2446,6 +2461,7 @@ broccoli-persistent-filter@^2.1.0, broccoli-persistent-filter@^2.1.1:
     rimraf "^2.6.1"
     rsvp "^4.7.0"
     symlink-or-copy "^1.0.1"
+    sync-disk-cache "^1.3.3"
     walk-sync "^1.0.0"
 
 broccoli-plugin@1.1.0:
@@ -2478,6 +2494,17 @@ broccoli-plugin@^2.0.0:
     rimraf "^2.3.4"
     symlink-or-copy "^1.1.8"
 
+broccoli-plugin@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/broccoli-plugin/-/broccoli-plugin-3.0.0.tgz#516f2b550ffa2bb111bf54c1afb4bd0b2f02065b"
+  integrity sha512-aEtobBvzAlUIAaY5z+LwW2W3IJ9pruJtrT571CyfjoDFTGa8LZx0qjQG97Z7Guk5YzuxDoDNlM3hGsgBnnReTw==
+  dependencies:
+    broccoli-node-api "^1.6.0"
+    promise-map-series "^0.2.1"
+    quick-temp "^0.1.3"
+    rimraf "^2.3.4"
+    symlink-or-copy "^1.1.8"
+
 broccoli-rollup@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/broccoli-rollup/-/broccoli-rollup-4.1.1.tgz#7531a24d88ddab9f1bace1c6ee6e6ca74a38d36f"
@@ -3089,7 +3116,7 @@ comment-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/comment-regex/-/comment-regex-1.0.1.tgz#e070d2c4db33231955d0979d27c918fcb6f93565"
   integrity sha512-IWlN//Yfby92tOIje7J18HkNmWRR7JESA/BK8W7wqY/akITpU5B0JQWnbTjCfdChSrDNb0DrdA9jfAxiiBXyiQ==
 
-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==
@@ -3774,16 +3801,6 @@ ember-cli-htmlbars-inline-precompile@^2.1.0:
     heimdalljs-logger "^0.1.9"
     silent-error "^1.1.0"
 
-ember-cli-htmlbars@^2.0.1:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-2.0.5.tgz#b5a105429a6bce4f7c9c97b667e3b8926e31397f"
-  integrity sha512-3f3PAxdnQ/fhQa8XP/3z4RLRgLHxV8j4Ln75aHbRdemOCjBa048KxL9l+acRLhCulbGQCMnLiIUIC89PAzLrcA==
-  dependencies:
-    broccoli-persistent-filter "^1.4.3"
-    hash-for-dep "^1.2.3"
-    json-stable-stringify "^1.0.0"
-    strip-bom "^3.0.0"
-
 ember-cli-htmlbars@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-3.0.1.tgz#01e21f0fd05e0a6489154f26614b1041769e3e58"
@@ -3794,6 +3811,27 @@ ember-cli-htmlbars@^3.0.1:
     json-stable-stringify "^1.0.0"
     strip-bom "^3.0.0"
 
+ember-cli-htmlbars@^4.0.5:
+  version "4.0.5"
+  resolved "https://registry.yarnpkg.com/ember-cli-htmlbars/-/ember-cli-htmlbars-4.0.5.tgz#0ad521831c2d740502ffd9b0bd28d2d799752f63"
+  integrity sha512-/zJKzP7RVNnnlYwtliyLsr174wBLcFMJUIOvy0mGnb+optwDJpgCdMzSYEjy/myoXDWgS/6cpLVLneFZ4tYm9Q==
+  dependencies:
+    "@ember/edition-utils" "^1.1.1"
+    babel-plugin-htmlbars-inline-precompile "^3.0.0"
+    broccoli-debug "^0.6.5"
+    broccoli-persistent-filter "^2.3.1"
+    broccoli-plugin "^3.0.0"
+    common-tags "^1.8.0"
+    ember-cli-babel-plugin-helpers "^1.1.0"
+    fs-copy-file-sync "^1.1.1"
+    hash-for-dep "^1.5.1"
+    heimdalljs-logger "^0.1.10"
+    json-stable-stringify "^1.0.1"
+    mkdirp "^0.5.1"
+    semver "^6.3.0"
+    strip-bom "^4.0.0"
+    walk-sync "^2.0.2"
+
 ember-cli-inject-live-reload@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/ember-cli-inject-live-reload/-/ember-cli-inject-live-reload-2.0.1.tgz#1bf3a6ea1747bceddc9f62f7ca8575de6b53ddaf"
@@ -4946,6 +4984,11 @@ from2@^2.1.1:
     inherits "^2.0.1"
     readable-stream "^2.0.0"
 
+fs-copy-file-sync@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/fs-copy-file-sync/-/fs-copy-file-sync-1.1.1.tgz#11bf32c096c10d126e5f6b36d06eece776062918"
+  integrity sha512-2QY5eeqVv4m2PfyMiEuy9adxNP+ajf+8AR05cEi+OAzPcOj90hvFImeZhTmKLBgSd9EvG33jsD7ZRxsx9dThkQ==
+
 fs-extra@^0.24.0:
   version "0.24.0"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-0.24.0.tgz#d4e4342a96675cb7846633a6099249332b539952"
@@ -5029,17 +5072,7 @@ fs-tree-diff@^0.5.2, fs-tree-diff@^0.5.3, fs-tree-diff@^0.5.4, fs-tree-diff@^0.5
     path-posix "^1.0.0"
     symlink-or-copy "^1.1.8"
 
-fs-tree-diff@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/fs-tree-diff/-/fs-tree-diff-1.0.2.tgz#0e2931733a85b55feb3472c0b89a20b0c03ac0de"
-  integrity sha512-Zro2ACaPVDgVOx9+s5s5AfPlAD0kMJdbwGvTGF6KC1SjxjiGWxJvV4mUTDkFVSy3OUw2C/f1qpdjF81hGqSBAw==
-  dependencies:
-    heimdalljs-logger "^0.1.7"
-    object-assign "^4.1.0"
-    path-posix "^1.0.0"
-    symlink-or-copy "^1.1.8"
-
-fs-tree-diff@^2.0.1:
+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==
@@ -5474,15 +5507,17 @@ has@^1.0.1, has@^1.0.3:
   dependencies:
     function-bind "^1.1.1"
 
-hash-for-dep@^1.0.2, hash-for-dep@^1.2.3:
-  version "1.2.3"
-  resolved "https://registry.yarnpkg.com/hash-for-dep/-/hash-for-dep-1.2.3.tgz#5ec69fca32c23523972d52acb5bb65ffc3664cab"
-  integrity sha512-NE//rDaCFpWHViw30YM78OAGBShU+g4dnUGY3UWGyEzPOGYg/ptOjk32nEc+bC1xz+RfK5UIs6lOL6eQdrV4Ow==
+hash-for-dep@^1.0.2, hash-for-dep@^1.2.3, hash-for-dep@^1.5.0, hash-for-dep@^1.5.1:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/hash-for-dep/-/hash-for-dep-1.5.1.tgz#497754b39bee2f1c4ade4521bfd2af0a7c1196e3"
+  integrity sha512-/dQ/A2cl7FBPI2pO0CANkvuuVi/IFS5oTyJ0PsOb6jW6WbVW1js5qJXMJTNbWHXBIPdFTWFbabjB+mE0d+gelw==
   dependencies:
     broccoli-kitchen-sink-helpers "^0.3.1"
     heimdalljs "^0.2.3"
     heimdalljs-logger "^0.1.7"
-    resolve "^1.4.0"
+    path-root "^0.1.1"
+    resolve "^1.10.0"
+    resolve-package-path "^1.0.11"
 
 he@1.2.0:
   version "1.2.0"
@@ -5502,7 +5537,7 @@ heimdalljs-graph@^0.3.1:
   resolved "https://registry.yarnpkg.com/heimdalljs-graph/-/heimdalljs-graph-0.3.5.tgz#420fbbc8fc3aec5963ddbbf1a5fb47921c4a5927"
   integrity sha512-szOy9WZUc7eUInEBQEsoa1G2d+oYHrn6ndZPf76eh8A9ID1zWUCEEsxP3F+CvQx9+EDrg1srdyLUmfVAr8EB4g==
 
-heimdalljs-logger@^0.1.7, heimdalljs-logger@^0.1.9:
+heimdalljs-logger@^0.1.10, heimdalljs-logger@^0.1.7, heimdalljs-logger@^0.1.9:
   version "0.1.10"
   resolved "https://registry.yarnpkg.com/heimdalljs-logger/-/heimdalljs-logger-0.1.10.tgz#90cad58aabb1590a3c7e640ddc6a4cd3a43faaf7"
   integrity sha512-pO++cJbhIufVI/fmB/u2Yty3KJD0TqNPecehFae0/eps0hkZ3b4Zc/PezUMOpYuHFQbA7FxHZxa305EhmjLj4g==
@@ -8484,6 +8519,14 @@ resolve-from@^4.0.0:
   resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-4.0.0.tgz#4abcd852ad32dd7baabfe9b40e00a36db5f392e6"
   integrity sha512-pb/MYmXstAkysRFx8piNI1tGFNQIFA3vkE3Gq4EuA1dF6gHp/+vgZqsCGJapvy8N3Q+4o7FwvquPJcnZ7RYy4g==
 
+resolve-package-path@^1.0.11:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/resolve-package-path/-/resolve-package-path-1.2.7.tgz#2a7bc37ad96865e239330e3102c31322847e652e"
+  integrity sha512-fVEKHGeK85bGbVFuwO9o1aU0n3vqQGrezPc51JGu9UTXpFQfWq5qCeKxyaRUSvephs+06c5j5rPq/dzHGEo8+Q==
+  dependencies:
+    path-root "^0.1.1"
+    resolve "^1.10.0"
+
 resolve-package-path@^1.2.6:
   version "1.2.6"
   resolved "https://registry.yarnpkg.com/resolve-package-path/-/resolve-package-path-1.2.6.tgz#48f5d69a5b3a0ea68f7b9c7398459dd4125807c7"
@@ -8733,7 +8776,7 @@ select@^1.1.2:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.0.tgz#790a7cf6fea5459bac96110b29b60412dc8ff96b"
   integrity sha512-Ya52jSX2u7QKghxeoFGpLwCtGlt7j0oY9DYb5apt9nPlJ42ID+ulTXESnt/qAQcoSERyZ5sl3LDIOw0nAn/5DA==
 
-semver@^6.0.0, semver@^6.1.0:
+semver@^6.0.0, semver@^6.1.0, semver@^6.3.0:
   version "6.3.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
@@ -9253,6 +9296,11 @@ strip-bom@^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-comments@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/strip-comments/-/strip-comments-1.0.2.tgz#82b9c45e7f05873bee53f37168af930aa368679d"
@@ -9326,6 +9374,17 @@ symlink-or-copy@^1.0.0, symlink-or-copy@^1.0.1, symlink-or-copy@^1.1.8, symlink-
   resolved "https://registry.yarnpkg.com/symlink-or-copy/-/symlink-or-copy-1.2.0.tgz#5d49108e2ab824a34069b68974486c290020b393"
   integrity sha512-W31+GLiBmU/ZR02Ii0mVZICuNEN9daZ63xZMPDsYgPgNjMtg+atqLEGI7PPI936jYSQZxoLb/63xos8Adrx4Eg==
 
+sync-disk-cache@^1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/sync-disk-cache/-/sync-disk-cache-1.3.3.tgz#481933461623fdc2bdf46cfc87872ba215a7e246"
+  integrity sha512-Kp7DFemXDPRUbFW856CKamtX7bJuThZPa2dwnK2RfNqMew7Ah8xDc52SdooNlfN8oydDdDHlBPLsXTrtmA7HKw==
+  dependencies:
+    debug "^2.1.3"
+    heimdalljs "^0.2.3"
+    mkdirp "^0.5.0"
+    rimraf "^2.2.8"
+    username-sync "^1.0.2"
+
 table@^5.2.3:
   version "5.2.3"
   resolved "https://registry.yarnpkg.com/table/-/table-5.2.3.tgz#cde0cc6eb06751c009efab27e8c820ca5b67b7f2"
@@ -9805,6 +9864,11 @@ username-sync@1.0.1:
   resolved "https://registry.yarnpkg.com/username-sync/-/username-sync-1.0.1.tgz#1cde87eefcf94b8822984d938ba2b797426dae1f"
   integrity sha1-HN6H7vz5S4gimE2Ti6K3l0Jtrh8=
 
+username-sync@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/username-sync/-/username-sync-1.0.2.tgz#0a3697909fb7b5768d29e2921f573acfdd427592"
+  integrity sha512-ayNkOJdoNSGNDBE46Nkc+l6IXmeugbzahZLSMkwvgRWv5y5ZqNY2IrzcgmkR4z32sj1W3tM3TuTUMqkqBzO+RA==
+
 username@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/username/-/username-1.0.1.tgz#e1f72295e3e58e06f002c6327ce06897a99cd67f"
@@ -9915,6 +9979,15 @@ 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"