diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..d9e3d80
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,5 @@
+## 1.0.0 (2024-08-03)
+
+### Features
+
+* initial implementation ([776d26c](https://github.com/geo-quest/geo-quest.github.io/commit/776d26c4a69623226467261748b83b8fc8b59235))
diff --git a/package-lock.json b/package-lock.json
index 7fccbf1..d5ebc81 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "geo-quest.github.io",
-  "version": "1.0.2",
+  "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "geo-quest.github.io",
-      "version": "1.0.2",
+      "version": "1.0.0",
       "dependencies": {
         "@testing-library/jest-dom": "^5.17.0",
         "@testing-library/react": "^15.0.6",
diff --git a/package.json b/package.json
index 1ad05d7..9f9b058 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "geo-quest.github.io",
   "homepage": "https://geo-quest.github.io",
-  "version": "1.0.2",
+  "version": "1.0.0",
   "private": true,
   "dependencies": {
     "@testing-library/jest-dom": "^5.17.0",