diff --git a/package.json b/package.json
index 64096add..8113c588 100644
--- a/package.json
+++ b/package.json
@@ -83,7 +83,7 @@
     "rollup-plugin-babel": "^4.4.0",
     "rollup-plugin-terser": "^7.0.2",
     "rtl-detect": "^1.0.2",
-    "sapper": "nolanlawson/sapper#for-pinafore-21",
+    "sapper": "nolanlawson/sapper#for-pinafore-22",
     "sass": "^1.26.10",
     "stringz": "^2.1.0",
     "svelte": "^2.16.1",
diff --git a/yarn.lock b/yarn.lock
index d57d1a00..dccc7cd5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7157,9 +7157,9 @@ sanitize-filename@^1.6.0:
   dependencies:
     truncate-utf8-bytes "^1.0.0"
 
-sapper@nolanlawson/sapper#for-pinafore-21:
+sapper@nolanlawson/sapper#for-pinafore-22:
   version "0.27.12"
-  resolved "https://codeload.github.com/nolanlawson/sapper/tar.gz/b1bfa42b124ef087958c2129b6b19e5f053e1884"
+  resolved "https://codeload.github.com/nolanlawson/sapper/tar.gz/eeed3b57995f6ae876de144a973a3f00245a4584"
   dependencies:
     html-minifier "^3.5.20"
     http-link-header "^1.0.2"