diff --git a/.pnp.cjs b/.pnp.cjs
index 00df190b1..eca75d78c 100644
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -4402,6 +4402,7 @@ const RAW_RUNTIME_STATE =
           ["core-js", "npm:3.18.0"],\
           ["graphql", "npm:16.8.1"],\
           ["ts-node", "virtual:91213f02ae820a190b230a7880bf0bf0c2c9838397b0cf7428815db9bfbf992c47df4585ca3b01cd14d7a39c5069db5fdbf809cb9db4dfc613f95e2e83ce1e0a#npm:10.9.2"],\
+          ["tslib", "npm:2.8.1"],\
           ["typescript", "patch:typescript@npm%3A5.6.3#optional!builtin<compat/typescript>::version=5.6.3&hash=8c6c40"],\
           ["vitest", "virtual:e74940e35978632a0c14fa5497dc52825a9c66f5b1078eb2e64acf3c410407bb81bc4632771c0031555903c2ed0410b5bd9f7005884e1b336a14c40f1d7762b1#npm:3.2.6"]\
         ],\
diff --git a/packages/openneuro-indexer/package.json b/packages/openneuro-indexer/package.json
index be38c2281..c70bd4007 100644
--- a/packages/openneuro-indexer/package.json
+++ b/packages/openneuro-indexer/package.json
@@ -14,6 +14,7 @@
     "@openneuro/search": "^5.5.0",
     "graphql": "16.8.1",
     "ts-node": "10.9.2",
+    "tslib": "^2.8.1",
     "typescript": "5.6.3"
   },
   "scripts": {
diff --git a/yarn.lock b/yarn.lock
index 37dc820f8..272f1ea6c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3433,6 +3433,7 @@ __metadata:
     core-js: "npm:^3.10.1"
     graphql: "npm:16.8.1"
     ts-node: "npm:10.9.2"
+    tslib: "npm:^2.8.1"
     typescript: "npm:5.6.3"
     vitest: "npm:3.2.6"
   bin:
@@ -20050,7 +20051,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"tslib@npm:2.8.1":
+"tslib@npm:2.8.1, tslib@npm:^2.8.1":
   version: 2.8.1
   resolution: "tslib@npm:2.8.1"
   checksum: 10/3e2e043d5c2316461cb54e5c7fe02c30ef6dccb3384717ca22ae5c6b5bc95232a6241df19c622d9c73b809bea33b187f6dbc73030963e29950c2141bc32a79f7