diff --git a/services/project-history/package.json b/services/project-history/package.json
index f8eaff45a7..4b62bf714a 100644
--- a/services/project-history/package.json
+++ b/services/project-history/package.json
@@ -29,7 +29,6 @@
     "async": "^3.2.5",
     "body-parser": "1.20.4",
     "bunyan": "^1.8.15",
-    "celebrate": "^15.0.3",
     "diff-match-patch": "overleaf/diff-match-patch#89805f9c671a77a263fc53461acd62aa7498f688",
     "express": "4.22.1",
     "lodash": "^4.18.1",
diff --git a/yarn.lock b/yarn.lock
index 8c85b5b325..579a0f9d22 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6955,7 +6955,6 @@ __metadata:
     async: "npm:^3.2.5"
     body-parser: "npm:1.20.4"
     bunyan: "npm:^1.8.15"
-    celebrate: "npm:^15.0.3"
     chai: "npm:^4.3.6"
     chai-as-promised: "npm:^7.1.1"
     diff-match-patch: "overleaf/diff-match-patch#89805f9c671a77a263fc53461acd62aa7498f688"