diff --git a/package-lock.json b/package-lock.json
index 2394dbf..43eadb5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
         "@fullhuman/postcss-purgecss": "^3.1.3",
         "compression": "^1.7.1",
         "polka": "next",
-        "sirv": "^1.0.0"
+        "sirv": "^1.0.19"
       },
       "devDependencies": {
         "@babel/core": "^7.0.0",
@@ -1313,9 +1313,9 @@
       }
     },
     "node_modules/@polka/url": {
-      "version": "1.0.0-next.12",
-      "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.12.tgz",
-      "integrity": "sha512-6RglhutqrGFMO1MNUXp95RBuYIuc8wTnMAV5MUhLmjTOy78ncwOw7RgeQ/HeymkKXRhZd0s2DNrM1rL7unk3MQ=="
+      "version": "1.0.0-next.21",
+      "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.21.tgz",
+      "integrity": "sha512-a5Sab1C4/icpTZVzZc5Ghpz88yQtGOyNqYXcZgOssB2uuAr+wF/MvN6bgtW32q7HHrvBki+BsZ0OuNv6EV3K9g=="
     },
     "node_modules/@rollup/plugin-babel": {
       "version": "5.3.0",
@@ -2837,6 +2837,7 @@
       "version": "2.5.2",
       "resolved": "https://registry.npmjs.org/mime/-/mime-2.5.2.tgz",
       "integrity": "sha512-tqkh47FzKeCPD2PUiPB6pkbMzsCasjxAfC62/Wap5qrUWcb+sFasXUC5I3gYM5iBM8v/Qpn4UK0x+j0iHyFPDg==",
+      "dev": true,
       "bin": {
         "mime": "cli.js"
       },
@@ -2892,6 +2893,14 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/mrmime": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/mrmime/-/mrmime-1.0.0.tgz",
+      "integrity": "sha512-a70zx7zFfVO7XpnQ2IX1Myh9yY4UYvfld/dikWRnsXxbyvMcfz+u6UfgNAtH+k2QqtJuzVpv6eLTx1G2+WKZbQ==",
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -3821,12 +3830,12 @@
       "dev": true
     },
     "node_modules/sirv": {
-      "version": "1.0.11",
-      "resolved": "https://registry.npmjs.org/sirv/-/sirv-1.0.11.tgz",
-      "integrity": "sha512-SR36i3/LSWja7AJNRBz4fF/Xjpn7lQFI30tZ434dIy+bitLYSP+ZEenHg36i23V2SGEz+kqjksg0uOGZ5LPiqg==",
+      "version": "1.0.19",
+      "resolved": "https://registry.npmjs.org/sirv/-/sirv-1.0.19.tgz",
+      "integrity": "sha512-JuLThK3TnZG1TAKDwNIqNq6QA2afLOCcm+iE8D1Kj3GA40pSPsxQjjJl0J8X3tsR7T+CP1GavpzLwYkgVLWrZQ==",
       "dependencies": {
-        "@polka/url": "^1.0.0-next.9",
-        "mime": "^2.3.1",
+        "@polka/url": "^1.0.0-next.20",
+        "mrmime": "^1.0.0",
         "totalist": "^1.0.0"
       },
       "engines": {
@@ -5362,9 +5371,9 @@
       }
     },
     "@polka/url": {
-      "version": "1.0.0-next.12",
-      "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.12.tgz",
-      "integrity": "sha512-6RglhutqrGFMO1MNUXp95RBuYIuc8wTnMAV5MUhLmjTOy78ncwOw7RgeQ/HeymkKXRhZd0s2DNrM1rL7unk3MQ=="
+      "version": "1.0.0-next.21",
+      "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.21.tgz",
+      "integrity": "sha512-a5Sab1C4/icpTZVzZc5Ghpz88yQtGOyNqYXcZgOssB2uuAr+wF/MvN6bgtW32q7HHrvBki+BsZ0OuNv6EV3K9g=="
     },
     "@rollup/plugin-babel": {
       "version": "5.3.0",
@@ -6543,7 +6552,8 @@
     "mime": {
       "version": "2.5.2",
       "resolved": "https://registry.npmjs.org/mime/-/mime-2.5.2.tgz",
-      "integrity": "sha512-tqkh47FzKeCPD2PUiPB6pkbMzsCasjxAfC62/Wap5qrUWcb+sFasXUC5I3gYM5iBM8v/Qpn4UK0x+j0iHyFPDg=="
+      "integrity": "sha512-tqkh47FzKeCPD2PUiPB6pkbMzsCasjxAfC62/Wap5qrUWcb+sFasXUC5I3gYM5iBM8v/Qpn4UK0x+j0iHyFPDg==",
+      "dev": true
     },
     "mime-db": {
       "version": "1.47.0",
@@ -6578,6 +6588,11 @@
       "integrity": "sha512-1lM+BMLGuDfsdwf3rsgBSrxJwAZHFIrQ8YR61xIqdHo0uNKI9M52wNpHSrliZATJp51On6JD0AfRxd4YGSU0lw==",
       "dev": true
     },
+    "mrmime": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/mrmime/-/mrmime-1.0.0.tgz",
+      "integrity": "sha512-a70zx7zFfVO7XpnQ2IX1Myh9yY4UYvfld/dikWRnsXxbyvMcfz+u6UfgNAtH+k2QqtJuzVpv6eLTx1G2+WKZbQ=="
+    },
     "ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -7270,12 +7285,12 @@
       }
     },
     "sirv": {
-      "version": "1.0.11",
-      "resolved": "https://registry.npmjs.org/sirv/-/sirv-1.0.11.tgz",
-      "integrity": "sha512-SR36i3/LSWja7AJNRBz4fF/Xjpn7lQFI30tZ434dIy+bitLYSP+ZEenHg36i23V2SGEz+kqjksg0uOGZ5LPiqg==",
+      "version": "1.0.19",
+      "resolved": "https://registry.npmjs.org/sirv/-/sirv-1.0.19.tgz",
+      "integrity": "sha512-JuLThK3TnZG1TAKDwNIqNq6QA2afLOCcm+iE8D1Kj3GA40pSPsxQjjJl0J8X3tsR7T+CP1GavpzLwYkgVLWrZQ==",
       "requires": {
-        "@polka/url": "^1.0.0-next.9",
-        "mime": "^2.3.1",
+        "@polka/url": "^1.0.0-next.20",
+        "mrmime": "^1.0.0",
         "totalist": "^1.0.0"
       }
     },
diff --git a/package.json b/package.json
index 5cd9b0f..157dee3 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
     "@fullhuman/postcss-purgecss": "^3.1.3",
     "compression": "^1.7.1",
     "polka": "next",
-    "sirv": "^1.0.0"
+    "sirv": "^1.0.19"
   },
   "devDependencies": {
     "@babel/core": "^7.0.0",