diff --git a/package.json b/package.json
index bf183b42..1af83938 100644
--- a/package.json
+++ b/package.json
@@ -44,9 +44,9 @@
   "contributors": "https://github.com/TryGhost/Starter/graphs/contributors",
   "devDependencies": {
     "@tryghost/release-utils": "0.8.1",
-    "autoprefixer": "10.4.27",
+    "autoprefixer": "10.5.0",
     "beeper": "2.1.0",
-    "cssnano": "7.1.3",
+    "cssnano": "7.1.7",
     "gscan": "5.4.3",
     "gulp": "5.0.1",
     "gulp-livereload": "4.0.2",
diff --git a/yarn.lock b/yarn.lock
index 937b6dbb..b64e1505 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2351,13 +2351,13 @@ atob@^2.1.2:
   resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
   integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
 
-autoprefixer@10.4.27:
-  version "10.4.27"
-  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-10.4.27.tgz#51ea301a5c3c5f8642f8e564759c4f573be486f2"
-  integrity sha512-NP9APE+tO+LuJGn7/9+cohklunJsXWiaWEfV3si4Gi/XHDwVNgkwr1J3RQYFIvPy76GmJ9/bW8vyoU1LcxwKHA==
+autoprefixer@10.5.0:
+  version "10.5.0"
+  resolved "https://registry.yarnpkg.com/autoprefixer/-/autoprefixer-10.5.0.tgz#33d87e443430f020a0f85319d6ff1593cb291be9"
+  integrity sha512-FMhOoZV4+qR6aTUALKX2rEqGG+oyATvwBt9IIzVR5rMa2HRWPkxf+P+PAJLD1I/H5/II+HuZcBJYEFBpq39ong==
   dependencies:
-    browserslist "^4.28.1"
-    caniuse-lite "^1.0.30001774"
+    browserslist "^4.28.2"
+    caniuse-lite "^1.0.30001787"
     fraction.js "^5.3.4"
     picocolors "^1.1.1"
     postcss-value-parser "^4.2.0"
@@ -2739,7 +2739,7 @@ caniuse-api@^3.0.0:
     lodash.memoize "^4.1.2"
     lodash.uniq "^4.5.0"
 
-caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001774, caniuse-lite@^1.0.30001782:
+caniuse-lite@^1.0.0, caniuse-lite@^1.0.30001782, caniuse-lite@^1.0.30001787:
   version "1.0.30001791"
   resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001791.tgz#dfb93d85c40ad380c57123e72e10f3c575786b51"
   integrity sha512-yk0l/YSrOnFZk3UROpDLQD9+kC1l4meK/wed583AXrzoarMGJcbRi2Q4RaUYbKxYAsZ8sWmaSa/DsLmdBeI1vQ==
@@ -3143,7 +3143,7 @@ cssesc@^3.0.0:
   resolved "https://registry.yarnpkg.com/cssesc/-/cssesc-3.0.0.tgz#37741919903b868565e1c09ea747445cd18983ee"
   integrity sha512-/Tb/JcjK111nNScGob5MNtsntNM1aCNUDipB/TkwZFhyDrrE47SOx/18wF2bbjgc3ZzCSKW1T5nt5EbFoAz/Vg==
 
-cssnano-preset-default@^7.0.11:
+cssnano-preset-default@^7.0.15:
   version "7.0.15"
   resolved "https://registry.yarnpkg.com/cssnano-preset-default/-/cssnano-preset-default-7.0.15.tgz#464501cc908de8a9c18b8a59af36a21e1d955705"
   integrity sha512-60kx7lJ40//HA85cIfQXSOJFby2D2V1pOMNHVCxue3KFWCjRzmiQyL9OvI+NAhwUlaojOfF9eK3nGvrJLCBUfQ==
@@ -3184,12 +3184,12 @@ cssnano-utils@^5.0.2:
   resolved "https://registry.yarnpkg.com/cssnano-utils/-/cssnano-utils-5.0.2.tgz#92939eda38fb934151a8c87bd60764d1a27c5597"
   integrity sha512-kt41WLK7FLKfePzPi645Y+/NtW/nNM7Su6nlNUfJyRNW3JcuU3JU7+cWJc+JexTeZ8dRBvFufefdG2XpXkIo0A==
 
-cssnano@7.1.3:
-  version "7.1.3"
-  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-7.1.3.tgz#2a542bb8d62b6bee9e23e455ba2e507fd102f611"
-  integrity sha512-mLFHQAzyapMVFLiJIn7Ef4C2UCEvtlTlbyILR6B5ZsUAV3D/Pa761R5uC1YPhyBkRd3eqaDm2ncaNrD7R4mTRg==
+cssnano@7.1.7:
+  version "7.1.7"
+  resolved "https://registry.yarnpkg.com/cssnano/-/cssnano-7.1.7.tgz#152658ec9d24f080851c3010e61673d539765af7"
+  integrity sha512-N5LGn/OlhMxDTvKACwUPMzT34SSj1b022pvUAE/Vh6r2WD1aUCbc+QNIP/JjX9VVxebdJWZQ3352Lt4oF7dQ/g==
   dependencies:
-    cssnano-preset-default "^7.0.11"
+    cssnano-preset-default "^7.0.15"
     lilconfig "^3.1.3"
 
 csso@^5.0.5: