diff --git a/project.clj b/project.clj
index dd16603..6a1ef8c 100644
--- a/project.clj
+++ b/project.clj
@@ -9,7 +9,7 @@
                          [org.clojure/tools.macro "0.2.2"]
 
                          [cheshire "5.13.0"]
-                         [commons-codec "1.20.0"]
+                         [commons-codec "1.21.0"]
                          [compojure "1.7.2"]
                          [org.bouncycastle/bcpkix-jdk18on "1.83"]
                          [org.openvoxproject/http-client "2.2.3"]