diff --git a/package-lock.json b/package-lock.json
index 2394dbf..f79d044 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": "^1.0.18"
       },
       "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",
@@ -3821,11 +3821,11 @@
       "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": "1.0.18",
+      "resolved": "https://registry.npmjs.org/sirv/-/sirv-1.0.18.tgz",
+      "integrity": "sha512-f2AOPogZmXgJ9Ma2M22ZEhc1dNtRIzcEkiflMFeVTRq+OViOZMvH1IPMVOwrKaxpSaHioBJiDR0SluRqGa7atA==",
       "dependencies": {
-        "@polka/url": "^1.0.0-next.9",
+        "@polka/url": "^1.0.0-next.20",
         "mime": "^2.3.1",
         "totalist": "^1.0.0"
       },
@@ -5362,9 +5362,9 @@
       }
     },
     "@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",
@@ -7270,11 +7270,11 @@
       }
     },
     "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": "1.0.18",
+      "resolved": "https://registry.npmjs.org/sirv/-/sirv-1.0.18.tgz",
+      "integrity": "sha512-f2AOPogZmXgJ9Ma2M22ZEhc1dNtRIzcEkiflMFeVTRq+OViOZMvH1IPMVOwrKaxpSaHioBJiDR0SluRqGa7atA==",
       "requires": {
-        "@polka/url": "^1.0.0-next.9",
+        "@polka/url": "^1.0.0-next.20",
         "mime": "^2.3.1",
         "totalist": "^1.0.0"
       }
diff --git a/package.json b/package.json
index 5cd9b0f..2ec1368 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": "^1.0.18"
   },
   "devDependencies": {
     "@babel/core": "^7.0.0",