diff --git a/ghost/admin/package.json b/ghost/admin/package.json
index 25e536439c..effc8d868d 100644
--- a/ghost/admin/package.json
+++ b/ghost/admin/package.json
@@ -78,7 +78,7 @@
     "ember-drag-drop": "0.4.8",
     "ember-exam": "5.0.0",
     "ember-export-application-global": "2.0.1",
-    "ember-fetch": "7.1.0",
+    "ember-fetch": "8.0.0",
     "ember-in-viewport": "3.5.8",
     "ember-infinity": "2.0.3",
     "ember-load": "0.0.17",
diff --git a/ghost/admin/yarn.lock b/ghost/admin/yarn.lock
index 045323a03b..7646fd864f 100644
--- a/ghost/admin/yarn.lock
+++ b/ghost/admin/yarn.lock
@@ -3204,7 +3204,7 @@ broccoli-concat@4.0.0:
     lodash.uniq "^4.2.0"
     walk-sync "^0.3.2"
 
-broccoli-concat@^3.2.2, broccoli-concat@^3.7.4, broccoli-concat@^3.7.5:
+broccoli-concat@^3.2.2, broccoli-concat@^3.7.4:
   version "3.7.5"
   resolved "https://registry.yarnpkg.com/broccoli-concat/-/broccoli-concat-3.7.5.tgz#223beda8c1184252cf08ae020a3d45ffa6a48218"
   integrity sha512-rDs1Mej3Ej0Cy5yIO9oIQq5+BCv0opAwS2NW7M0BeCsAMeFM42Z/zacDUC6jKc5OV5wiHvGTyCPLnZkMe0h6kQ==
@@ -3222,6 +3222,23 @@ broccoli-concat@^3.2.2, broccoli-concat@^3.7.4, broccoli-concat@^3.7.5:
     lodash.uniq "^4.2.0"
     walk-sync "^0.3.2"
 
+broccoli-concat@^4.2.3:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/broccoli-concat/-/broccoli-concat-4.2.3.tgz#9f995c86e843f74b42d12f8146b9f21cd80eac64"
+  integrity sha512-K6glsSJKuoC+ubbnOZ4+g0BCFWXfjkKiEQMx2NFLYMXuBxKZnaV/Lx2aq+My57j0yUspRUXC/bJbEUIj5uPWkQ==
+  dependencies:
+    broccoli-debug "^0.6.5"
+    broccoli-kitchen-sink-helpers "^0.3.1"
+    broccoli-plugin "^4.0.1"
+    ensure-posix-path "^1.0.2"
+    fast-sourcemap-concat "^2.1.0"
+    find-index "^1.1.0"
+    fs-extra "^8.1.0"
+    fs-tree-diff "^2.0.1"
+    lodash.merge "^4.6.2"
+    lodash.omit "^4.1.0"
+    lodash.uniq "^4.2.0"
+
 broccoli-config-loader@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/broccoli-config-loader/-/broccoli-config-loader-1.0.1.tgz#d10aaf8ebc0cb45c1da5baa82720e1d88d28c80a"
@@ -6119,15 +6136,15 @@ ember-factory-for-polyfill@^1.3.1:
   dependencies:
     ember-cli-version-checker "^2.1.0"
 
-ember-fetch@7.1.0:
-  version "7.1.0"
-  resolved "https://registry.yarnpkg.com/ember-fetch/-/ember-fetch-7.1.0.tgz#17549e0df0f8c402b68612aa87f77957fa956ebf"
-  integrity sha512-FF2uEE7MXahNpXsQt9J3iJdPJDu27WL/ZD4NLuIWKgSAnFEvOxrjqhrU0fNMbkmJmlMBwGykbNiZVXDMpHbuLg==
+ember-fetch@8.0.0:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/ember-fetch/-/ember-fetch-8.0.0.tgz#bf4fcb78c6986f96658e8ee86ca3eb72cc0bb7aa"
+  integrity sha512-uWmxGmmd8+b3h4E0LY5+y4VFobcSMxCDsXitUIGKLKM9kXTKsdrbbML6Zmlwm4++nI7an9z7GQEKEuI5Bc/BHw==
   dependencies:
     abortcontroller-polyfill "^1.4.0"
-    broccoli-concat "^3.7.5"
+    broccoli-concat "^4.2.3"
     broccoli-debug "^0.6.5"
-    broccoli-merge-trees "^3.0.0"
+    broccoli-merge-trees "^4.1.0"
     broccoli-rollup "^2.1.1"
     broccoli-stew "^3.0.0"
     broccoli-templater "^2.0.1"
@@ -7292,6 +7309,20 @@ fast-sourcemap-concat@^1.4.0:
     source-map-url "^0.3.0"
     sourcemap-validator "^1.1.0"
 
+fast-sourcemap-concat@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/fast-sourcemap-concat/-/fast-sourcemap-concat-2.1.0.tgz#12dd36bfc38c804093e4bd1de61dd6216f574211"
+  integrity sha512-L9uADEnnHOeF4U5Kc3gzEs3oFpNCFkiTJXvT+nKmR0zcFqHZJJbszWT7dv4t9558FJRGpCj8UxUpTgz2zwiIZA==
+  dependencies:
+    chalk "^2.0.0"
+    fs-extra "^5.0.0"
+    heimdalljs-logger "^0.1.9"
+    memory-streams "^0.1.3"
+    mkdirp "^0.5.0"
+    source-map "^0.4.2"
+    source-map-url "^0.3.0"
+    sourcemap-validator "^1.1.0"
+
 fastboot-transform@^0.1.2, fastboot-transform@^0.1.3:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/fastboot-transform/-/fastboot-transform-0.1.3.tgz#7dea0b117594afd8772baa6c9b0919644e7f7dcd"