diff --git a/package.json b/package.json
index 64dcf50..ae5a8c6 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "markdown-to-jsx": "7.1.9",
     "preact": "10.13.1",
     "preact-cli-plugin-netlify": "1.6.0",
-    "preact-render-to-string": "5.2.6",
+    "preact-render-to-string": "6.5.9",
     "preact-router": "4.1.0",
     "parse-md": "3.0.3"
   },
diff --git a/yarn.lock b/yarn.lock
index 8ab1d7a..a02e65e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9292,12 +9292,10 @@ preact-render-spy@1.3.0:
     object.entries "^1.0.4"
     preact-render-to-string "^3.6.3"
 
-preact-render-to-string@5.2.6:
-  version "5.2.6"
-  resolved "https://registry.yarnpkg.com/preact-render-to-string/-/preact-render-to-string-5.2.6.tgz#0ff0c86cd118d30affb825193f18e92bd59d0604"
-  integrity sha512-JyhErpYOvBV1hEPwIxc/fHWXPfnEGdRKxc8gFdAZ7XV4tlzyzG847XAyEZqoDnynP88akM4eaHcSOzNcLWFguw==
-  dependencies:
-    pretty-format "^3.8.0"
+preact-render-to-string@6.5.9:
+  version "6.5.9"
+  resolved "https://registry.yarnpkg.com/preact-render-to-string/-/preact-render-to-string-6.5.9.tgz#96564749f71e10507b3e8b870928dde97bbcd70d"
+  integrity sha512-Fn9R89h6qrQeSRmsH2O2fWzqpVwsJgEL9UTly5nGEV2ldhVuG+9JhXdNJ6zreIkOZcBT20+AOMwlG1x72znJ+g==
 
 preact-render-to-string@^3.6.3:
   version "3.8.2"
@@ -9354,7 +9352,7 @@ pretty-error@^2.0.2:
     renderkid "^2.0.1"
     utila "~0.4"
 
-pretty-format@^3.5.1, pretty-format@^3.8.0:
+pretty-format@^3.5.1:
   version "3.8.0"
   resolved "https://registry.yarnpkg.com/pretty-format/-/pretty-format-3.8.0.tgz#bfbed56d5e9a776645f4b1ff7aa1a3ac4fa3c385"
   integrity sha1-v77VbV6ad2ZF9LH/eqGjrE+jw4U=