diff --git a/deps.edn b/deps.edn
index 264a48f..f555b73 100644
--- a/deps.edn
+++ b/deps.edn
@@ -1,7 +1,6 @@
 {:paths ["src", "resources"]
  :deps {com.google.javascript/closure-compiler-unshaded {:mvn/version "v20230103"}
         metosin/malli {:mvn/version "0.13.0"}
-        org.babashka/sci {:mvn/version "0.8.40"}
         org.clojure/clojure {:mvn/version "1.11.1"}
         org.clojure/clojurescript {:mvn/version "1.11.60"}
         s-expresso/rubberbuf {:git/url "https://github.com/s-expresso/rubberbuf.git"
diff --git a/src/clojobuf/core.cljc b/src/clojobuf/core.cljc
index 440cbe3..b61edb0 100644
--- a/src/clojobuf/core.cljc
+++ b/src/clojobuf/core.cljc
@@ -8,9 +8,7 @@
             [malli.generator :as mg]
             [malli.registry :as mr]
             #?(:clj [rubberbuf.core :as rc]) ; rubberbuf.core uses rubberbuf.util which uses cljs-node-io.core that is not available to cljs browser runtime
-            [rubberbuf.ast-postprocess :refer [unnest]]
-            #?(:cljs [sci.core]) ; manual require needed for cljs to serialize/deserialize function
-            ))
+            [rubberbuf.ast-postprocess :refer [unnest]]))
 
 (defn encode
   "Encode a message and return its protobuf binary, or return nil if msg is ill-formed.