diff --git a/2023/deps.edn b/2023/deps.edn
index dc060de..96fc512 100644
--- a/2023/deps.edn
+++ b/2023/deps.edn
@@ -3,7 +3,8 @@
         org.clojure/core.match {:mvn/version "1.0.1"}
         clj-http/clj-http {:mvn/version "3.12.3"}
         org.clojure/math.combinatorics {:mvn/version "0.2.0"}
-        org.clojure/tools.trace {:mvn/version "0.7.11"}}
+        org.clojure/tools.trace {:mvn/version "0.7.11"}
+        lonocloud/synthread {:mvn/version "1.4.0"}}
  :aliases
  {:repl
   {:extra-deps {nrepl/nrepl       {:mvn/version "0.9.0"}