diff --git a/CHANGELOG.md b/CHANGELOG.md
index dea31d2d6..9aa9a2165 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -64,7 +64,7 @@ _Breaking developer changes, which may affect downstream projects or sites that
 * Support incrementing cardinal directions with the up/down buttons ([#9141], thanks [@k-yle])
 #### :hammer: Development
 * Reduce uses of unsafe html injecting code
-* Upgrade dependencies: maki to `v8.0`, `osm-community-index` to `v5.2`, `d3` to `v7.6`, `togeojson` to `v5.2`
+* Upgrade dependencies: maki to `v8.0`, `osm-community-index` to `v5.2`, `d3` to `v7.6`, `togeojson` to `v5.2`, `mocha` to `v10`
 
 
 [#8419]: https://github.com/openstreetmap/iD/issues/8419
diff --git a/package.json b/package.json
index d3ba1fe1d..e2a1d93d8 100644
--- a/package.json
+++ b/package.json
@@ -100,7 +100,7 @@
     "mapillary-js": "4.1.0",
     "mapillary_sprite_source": "^1.8.0",
     "minimist": "^1.2.3",
-    "mocha": "^9.2.0",
+    "mocha": "^10.0.0",
     "name-suggestion-index": "~6.0",
     "node-fetch": "^2.6.1",
     "npm-run-all": "^4.0.0",