diff --git a/package.json b/package.json
index 30d3f2c19d8..914c7501aee 100644
--- a/package.json
+++ b/package.json
@@ -74,15 +74,15 @@
   },
   "devDependencies": {
     "@babel/preset-env": "^7.7.7",
-    "@glimmer/compiler": "0.47.3",
+    "@glimmer/compiler": "0.47.4",
     "@glimmer/env": "^0.1.7",
-    "@glimmer/interfaces": "0.47.3",
-    "@glimmer/node": "0.47.3",
-    "@glimmer/opcode-compiler": "0.47.3",
-    "@glimmer/program": "0.47.3",
-    "@glimmer/reference": "0.47.3",
-    "@glimmer/runtime": "0.47.3",
-    "@glimmer/validator": "0.47.3",
+    "@glimmer/interfaces": "0.47.4",
+    "@glimmer/node": "0.47.4",
+    "@glimmer/opcode-compiler": "0.47.4",
+    "@glimmer/program": "0.47.4",
+    "@glimmer/reference": "0.47.4",
+    "@glimmer/runtime": "0.47.4",
+    "@glimmer/validator": "0.47.4",
     "@simple-dom/document": "^1.4.0",
     "@types/qunit": "^2.5.4",
     "@types/rsvp": "^4.0.3",
diff --git a/yarn.lock b/yarn.lock
index ffbea9a0f7e..dd6638120fc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -801,138 +801,138 @@
   resolved "https://registry.yarnpkg.com/@ember/edition-utils/-/edition-utils-1.1.1.tgz#d5732c3da593f202e6e1ac6dbee56a758242403f"
   integrity sha512-GEhri78jdQp/xxPpM6z08KlB0wrHfnfrJ9dmQk7JeQ4XCiMzXsJci7yooQgg/IcTKCM/PxE/IkGCQAo80adMkw==
 
-"@glimmer/compiler@0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/compiler/-/compiler-0.47.3.tgz#6017f00d64cb8a665067ba86a38e95dde5952ea6"
-  integrity sha512-I43J+1fUIgLCGOjZ0BllNDcgiCkwCFkVK2pV3znhWD0l2zxWyNWAxu0S1XLc8iw9yhm3H0NfzIeADWhBDAw2eg==
-  dependencies:
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/syntax" "^0.47.3"
-    "@glimmer/util" "^0.47.3"
-    "@glimmer/wire-format" "^0.47.3"
+"@glimmer/compiler@0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/compiler/-/compiler-0.47.4.tgz#53c024ea66457be20f80b2c95845ec9ae838f4ee"
+  integrity sha512-YuNJR22gN7TYevenRlQIRLxys7d3i2hHX/qZdhy/VDCgXacf0AMm87LQAKM4k1sjHG8NtveSUEzAughLOBm7GQ==
+  dependencies:
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/syntax" "^0.47.4"
+    "@glimmer/util" "^0.47.4"
+    "@glimmer/wire-format" "^0.47.4"
     "@simple-dom/interface" "^1.4.0"
 
-"@glimmer/encoder@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/encoder/-/encoder-0.47.3.tgz#52c4920310b6a641d2622bc64f751c93b69172b5"
-  integrity sha512-WxFHveKXaVOPWJha10QrQItZNkHmtQDWovAImvOJ1tVJP0n1lApxDPmHWm8JxHAAz3rAXdWP7BE+cXpADWAGCw==
+"@glimmer/encoder@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/encoder/-/encoder-0.47.4.tgz#c52c46d587152d0af1c3e866a4062d0665a8cc4a"
+  integrity sha512-tYZdIKssBTCogsUbjqhnbP27W9ZiefTYGebNH7O7V+/4ZeitiRhVzy+ELDSB0vKyvlfYWxyecjcckvxVTJBaNQ==
   dependencies:
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/vm" "^0.47.3"
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/vm" "^0.47.4"
 
 "@glimmer/env@0.1.7", "@glimmer/env@^0.1.7":
   version "0.1.7"
   resolved "https://registry.yarnpkg.com/@glimmer/env/-/env-0.1.7.tgz#fd2d2b55a9029c6b37a6c935e8c8871ae70dfa07"
   integrity sha1-/S0rVakCnGs3psk16MiHGucN+gc=
 
-"@glimmer/interfaces@0.47.3", "@glimmer/interfaces@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/interfaces/-/interfaces-0.47.3.tgz#cbe70af51fe9779e273f5fc5c4df82fb44220cc4"
-  integrity sha512-5woCzbLqzes9ZMu0Kw16Ukt8ZiMPTqfkNuQPQSZHD/sCS6xg3TRNghrBz8GSv525p5g5x4TjdOl6JoTUzf/qlw==
+"@glimmer/interfaces@0.47.4", "@glimmer/interfaces@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/interfaces/-/interfaces-0.47.4.tgz#17772fae66571b606f9fa26d733d7211960a2560"
+  integrity sha512-Wbv6954fIOy1aWHh2IdneBmIGrGysyu+ZWrmAiuMQC92uf57a9AXFJW0DFY+X6gd8Biaw/Nx8EHE0bNeMYCp9Q==
   dependencies:
     "@simple-dom/interface" "^1.4.0"
 
-"@glimmer/low-level@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/low-level/-/low-level-0.47.3.tgz#aea34ef892b0d2b2c8b1f095e9ae5c1e6bc2e7ba"
-  integrity sha512-k/E8CNwpAOQmID3uBVhYiHK8GJta+Puqn0abErZmRMbOY8LFwLJVJ/ga8HqKj6R8w220EKBl+HZEenvy3GS+PA==
+"@glimmer/low-level@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/low-level/-/low-level-0.47.4.tgz#04684558499f5a5dbeec6ab440f97c3889156e20"
+  integrity sha512-brjZnS2XjKJFtG7XsjiL/D+CgLAi2uFcuDQAMcUEATsjTdW/XWspnBrUaX2s5SmaFwf843pZi61oKr0EgLmQKw==
 
-"@glimmer/node@0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/node/-/node-0.47.3.tgz#99e9134cbda9e64647be789abe93b77ec722c468"
-  integrity sha512-eeXLl8jUJhmcAa9EwJeCf4n/KH93XQjAlv+eFVmpEBu4jXuN/3TrgnMqArMpnvthFJNn/k3mBepEifamfQU4KA==
+"@glimmer/node@0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/node/-/node-0.47.4.tgz#a19ed1afb2ebac656d98a35acb4931a8a987fd23"
+  integrity sha512-UP86z6x2Bh7Q4jWbPxAvuWsfCqsbM8lROSiNx5ReA+K8iUgTT3PT6c2ea7TUSVmHnsx0Xzbs6UgINGMSROIaCg==
   dependencies:
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/runtime" "^0.47.3"
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/runtime" "^0.47.4"
     "@simple-dom/document" "^1.4.0"
     "@simple-dom/interface" "^1.4.0"
 
-"@glimmer/opcode-compiler@0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/opcode-compiler/-/opcode-compiler-0.47.3.tgz#a9e139ebf3ea6db11cdc43ce69dfbde962218b2c"
-  integrity sha512-v02O6GlzJN/W3c9WJaM1iUxXvC5hKgBfT+UQ4KUeLc/VF1TqJ1UhwcCUNrTrq685DmgMoBDWmv0/1zNU2lKl1Q==
-  dependencies:
-    "@glimmer/encoder" "^0.47.3"
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/program" "^0.47.3"
-    "@glimmer/reference" "^0.47.3"
-    "@glimmer/util" "^0.47.3"
-    "@glimmer/vm" "^0.47.3"
-    "@glimmer/wire-format" "^0.47.3"
-
-"@glimmer/program@0.47.3", "@glimmer/program@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/program/-/program-0.47.3.tgz#9e6a29ee447b6c05460cb2d572b54bd5fdb0f5e7"
-  integrity sha512-MN24uNA5fwMoA9x7JYs5oxVjP5I0zhTjSxcgXFIk6scyKmSqsX3fGXjYzBfeZ4cVyoaRJSykOm0UkTO56K+S1w==
-  dependencies:
-    "@glimmer/encoder" "^0.47.3"
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/util" "^0.47.3"
-
-"@glimmer/reference@0.47.3", "@glimmer/reference@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/reference/-/reference-0.47.3.tgz#34e879de392a54b19324fe6784e1b1c153a3ce4a"
-  integrity sha512-F7A92ZcxvkJJvMjwuOgA5EUBpHb2mxHorqNlLUHoxSRfhCgYBKkUqdtEsK6PEKra4uAEFwNJDE0K4CxRXai4nA==
+"@glimmer/opcode-compiler@0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/opcode-compiler/-/opcode-compiler-0.47.4.tgz#71decdfa7cac9ceef18e415ab349288e83768e53"
+  integrity sha512-uNY88oFZT6vwE5T+Cq74mJEkr8fwZ+nfIqRXtZNAIl8gNxfZDv0Q6nSDK+U2WNz6s4edomzxRUL67wpREfzwGw==
+  dependencies:
+    "@glimmer/encoder" "^0.47.4"
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/program" "^0.47.4"
+    "@glimmer/reference" "^0.47.4"
+    "@glimmer/util" "^0.47.4"
+    "@glimmer/vm" "^0.47.4"
+    "@glimmer/wire-format" "^0.47.4"
+
+"@glimmer/program@0.47.4", "@glimmer/program@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/program/-/program-0.47.4.tgz#b0105b28e332b458839b6c2e50c99f349198033b"
+  integrity sha512-jI3FbnE96HasdkYwqPNcOG/pwiIyfN7M3hrpKP1WCvtrDTp6MeikKSdiEafZefNlOk/zr1OqnG9RNMzjl7N3+w==
+  dependencies:
+    "@glimmer/encoder" "^0.47.4"
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/util" "^0.47.4"
+
+"@glimmer/reference@0.47.4", "@glimmer/reference@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/reference/-/reference-0.47.4.tgz#972e24313ce2552e24ebbaf1ce7691d7c4c1f7e9"
+  integrity sha512-A7ruDxaa/jFSoAWv0yeGRGgtEevaP1XAhamJ4CMGAXAwE2PiODo5TZRNiTsgKnoZytsokcvfXOJZIHHQ/VHdTg==
   dependencies:
     "@glimmer/env" "^0.1.7"
-    "@glimmer/util" "^0.47.3"
-    "@glimmer/validator" "^0.47.3"
+    "@glimmer/util" "^0.47.4"
+    "@glimmer/validator" "^0.47.4"
 
-"@glimmer/runtime@0.47.3", "@glimmer/runtime@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/runtime/-/runtime-0.47.3.tgz#67c0a7d2c20c7b1768e3eb7d9e3ce4a10941b294"
-  integrity sha512-eCS4ucIcKKHr0Ys17uteNH6J6lUIRAK6gr3DW5CT26EpvJ+mCLSHu1Eu6vXrUmXztfRENVuMkPVanJ0qkiwknA==
+"@glimmer/runtime@0.47.4", "@glimmer/runtime@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/runtime/-/runtime-0.47.4.tgz#ebeb396f5b4a1dea28b9865f8c7990b445474343"
+  integrity sha512-41eyqls4TpWk1tNVZHG0v2O2ynIpJr/vkCn3fPCajYM96KTV0dAXThJWwRm04O6nSzMaGmSpFawDjCe0A1FZtw==
   dependencies:
     "@glimmer/env" "0.1.7"
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/low-level" "^0.47.3"
-    "@glimmer/program" "^0.47.3"
-    "@glimmer/reference" "^0.47.3"
-    "@glimmer/util" "^0.47.3"
-    "@glimmer/validator" "^0.47.3"
-    "@glimmer/vm" "^0.47.3"
-    "@glimmer/wire-format" "^0.47.3"
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/low-level" "^0.47.4"
+    "@glimmer/program" "^0.47.4"
+    "@glimmer/reference" "^0.47.4"
+    "@glimmer/util" "^0.47.4"
+    "@glimmer/validator" "^0.47.4"
+    "@glimmer/vm" "^0.47.4"
+    "@glimmer/wire-format" "^0.47.4"
     "@simple-dom/interface" "^1.4.0"
 
-"@glimmer/syntax@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/syntax/-/syntax-0.47.3.tgz#8082b5e354f27defd3307e78538db41a8df45294"
-  integrity sha512-cR9F8aiEBRJptA1/rzuDQ3HSBfHidCcT3zZJ1n3NF1TwTwxtV1xzAMhXaU3laRMm1LMHsPG5jnNOjsII/NR4xw==
+"@glimmer/syntax@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/syntax/-/syntax-0.47.4.tgz#827f63a9c5f14a8329ff26c1e1f6ad211683690d"
+  integrity sha512-GCqoKyU11+cD9jL1J6AlSgKn1/rFUt/Wc3pgf/AE7uxza00OOYDEbqfpzOdv9sF727aqKdy9qp3a9O54IcevuA==
   dependencies:
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/util" "^0.47.3"
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/util" "^0.47.4"
     handlebars "^4.5.1"
-    simple-html-tokenizer "^0.5.8"
+    simple-html-tokenizer "^0.5.9"
 
-"@glimmer/util@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/util/-/util-0.47.3.tgz#9d104e54d301e03707ea2228431e373529284d55"
-  integrity sha512-2zFJIoqE4OxsEZkRi0tlHgjkL65AKcXNMTnBDsFSf7tLA0+Z58G18tM7mqijbZLZkwxA6/+uVpE/uGj0NbT24Q==
+"@glimmer/util@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/util/-/util-0.47.4.tgz#de6061d30f03ca09950208f6de7b529efc8fb539"
+  integrity sha512-uGcUjDtcy/CTSKMYuIpmvZfv4busDcPbx6X+AnWkaTIonvp0z8HKpZ5QYrulR9Gcbbtb+noCTmMr2qa7AEyA4Q==
   dependencies:
     "@simple-dom/interface" "^1.4.0"
 
-"@glimmer/validator@0.47.3", "@glimmer/validator@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/validator/-/validator-0.47.3.tgz#09722d88b2023b4e26632ab3e5ed9dacdbb5f3b2"
-  integrity sha512-k7By19cTMFR53LtXsAwk/Ezrny4Md1YXTNdVqD8fXMOmA0xF5iiK+5s6TFaxxxtk08LKNKgU1x6x8L+2gR0TiA==
+"@glimmer/validator@0.47.4", "@glimmer/validator@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/validator/-/validator-0.47.4.tgz#8ba22ccdf5adbf57fd175cbe77f447e43cabd092"
+  integrity sha512-u7jFJRBtz3i5/XWRlfCjSUsp6/NEA4J0/ildurvfdWDZusLZ0qAu995H1C12WtpIvvbY4rA/ELHnt5sNMldHDQ==
   dependencies:
     "@glimmer/env" "^0.1.7"
 
-"@glimmer/vm@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/vm/-/vm-0.47.3.tgz#0086952717944dc38d883567c78850f6861f55e3"
-  integrity sha512-3KMuT+CXbDjTDFXHBjc7nid9iDBupj7SFAwDkmkuMErmrUjCf+j9N5R/jhJuljRI8KA2N1W4EMzGDkHBz1kpow==
+"@glimmer/vm@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/vm/-/vm-0.47.4.tgz#13cab445e5e8dccb556150dacbfa2f9d3384a6e0"
+  integrity sha512-pZHbgfNG24WYO/nYldBOQMuasau3sgxTc9F10Pk1mAUKoCSSct2z04MoJrrvOh1ItpppIxLS5OHsLkBBNtbEDg==
   dependencies:
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/util" "^0.47.3"
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/util" "^0.47.4"
 
-"@glimmer/wire-format@^0.47.3":
-  version "0.47.3"
-  resolved "https://registry.yarnpkg.com/@glimmer/wire-format/-/wire-format-0.47.3.tgz#16699818745f290520edfad5bd5dab94cd08b012"
-  integrity sha512-nu+c1SrVAwyMeGuBNTCSoh/0qL0Fb0SYYZdLkd5xO8FxWjB4zgyJKwI2DpnBcIk4ymzyD1LcviU1HbYyrpiT8w==
+"@glimmer/wire-format@^0.47.4":
+  version "0.47.4"
+  resolved "https://registry.yarnpkg.com/@glimmer/wire-format/-/wire-format-0.47.4.tgz#9e05a9f9eb48a8494b37b2c90f89ac03f048925d"
+  integrity sha512-DMrx8sC6cOR4+5dDq/i8FzqJFGB6LTEcBjDyjLKqP9O9I0FY1ktjn4mcuFAm2KB7LLMbYa1u3iLHRaEs4k3deg==
   dependencies:
-    "@glimmer/interfaces" "^0.47.3"
-    "@glimmer/util" "^0.47.3"
+    "@glimmer/interfaces" "^0.47.4"
+    "@glimmer/util" "^0.47.4"
 
 "@simple-dom/document@^1.4.0":
   version "1.4.0"
@@ -7585,10 +7585,10 @@ simple-dom@^1.4.0:
     "@simple-dom/serializer" "^1.4.0"
     "@simple-dom/void-map" "^1.4.0"
 
-simple-html-tokenizer@^0.5.8:
-  version "0.5.8"
-  resolved "https://registry.yarnpkg.com/simple-html-tokenizer/-/simple-html-tokenizer-0.5.8.tgz#3417382f75954ee34515cc4fd32d9918e693f173"
-  integrity sha512-0Sq4FvLlQEQODVA6PH2MIrc7tzYO0KT2HzzwvaVLYClWgIsuvaNUOrhrAvTi1pZHrcq7GDB4WiI3ukjqBMxcGQ==
+simple-html-tokenizer@^0.5.9:
+  version "0.5.9"
+  resolved "https://registry.yarnpkg.com/simple-html-tokenizer/-/simple-html-tokenizer-0.5.9.tgz#1a83fe97f5a3e39b335fddf71cfe9b0263b581c2"
+  integrity sha512-w/3FEDN94r4JQ9WoYrIr8RqDIPZdyNkdpbK9glFady1CAEyD97XWCv8HFetQO21w81e7h7Nh59iYTyG1mUJftg==
 
 slice-ansi@^2.1.0:
   version "2.1.0"