diff --git a/src/lambdaisland/plenish.clj b/src/lambdaisland/plenish.clj
index ff147c0..633dee1 100644
--- a/src/lambdaisland/plenish.clj
+++ b/src/lambdaisland/plenish.clj
@@ -192,7 +192,7 @@
     :db.type/keyword (str (when (qualified-ident? value)
                             (str (namespace value) "/"))
                           (name value))
-    :db.type/instant [:raw (format "to_timestamp(%.3f)" (double (/ (.getTime ^java.util.Date value) 1000)))]
+    :db.type/instant [:raw (format "epoch_ms(%d)" (inst-ms value))]
     value))
 
 ;; The functions below are the heart of the process