diff --git a/package.json b/package.json
index b78f16c..7a89cd1 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
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   "packageManager": "yarn@4.9.2",
   "dependencies": {
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+    "@thi.ng/transducers": "9.6.21"
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   "devDependencies": {
     "@cloudflare/workers-types": "4.20250813.0",
diff --git a/yarn.lock b/yarn.lock
index 61a472a..a349577 100644
--- a/yarn.lock
+++ b/yarn.lock
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@@ -6733,7 +6733,7 @@ __metadata:
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     "@hckr_/blendid": "npm:9.6.3"
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+    "@thi.ng/transducers": "npm:9.6.21"
     fancy-log: "npm:2.0.0"
     undertaker-registry: "npm:2.0.0"
     wrangler: "npm:4.29.1"