diff --git a/package-lock.json b/package-lock.json
index 1795d86..5b98428 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "markdown-it-tufte",
-  "version": "0.3.0",
+  "version": "1.0.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "markdown-it-tufte",
-      "version": "0.3.0",
+      "version": "1.0.0",
       "license": "MIT",
       "devDependencies": {
         "@eslint/eslintrc": "^3.2.0",
diff --git a/package.json b/package.json
index ccf29ec..b620f14 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "markdown-it-tufte",
-  "version": "0.3.0",
+  "version": "1.0.0",
   "description": "A markdown-it plugin for creating documents compatible with Tufte CSS.",
   "author": "Neill Robson",
   "homepage": "https://github.com/neillrobson/markdown-it-tufte",