diff --git a/backend/src/uxbox/config.clj b/backend/src/uxbox/config.clj
index c49969108d..2e65dfbb1f 100644
--- a/backend/src/uxbox/config.clj
+++ b/backend/src/uxbox/config.clj
@@ -77,7 +77,7 @@
     (when-not secret
       (ex/raise :code ::missing-secret-key
                 :message "Missing `:secret` key in config."))
-    (hash/blake2b-512 secret)))
+    (hash/blake2b-256 secret)))
 
 (defstate secret
   :start (initialize-secret config))
diff --git a/backend/src/uxbox/util/response.clj b/backend/src/uxbox/util/response.clj
index 1ca733bb78..4ecf79dae9 100644
--- a/backend/src/uxbox/util/response.clj
+++ b/backend/src/uxbox/util/response.clj
@@ -27,7 +27,7 @@
 
 (defn digest
   [^bytes data]
-  (-> (hash/blake2b-512 data)
+  (-> (hash/blake2b-256 data)
       (b64/encode true)
       (codecs/bytes->str)))
 
diff --git a/backend/src/uxbox/util/token.clj b/backend/src/uxbox/util/token.clj
index 5fb993729f..605c9af1f6 100644
--- a/backend/src/uxbox/util/token.clj
+++ b/backend/src/uxbox/util/token.clj
@@ -17,7 +17,7 @@
   using urlsafe variant of base64."
   []
   (-> (nonce/random-bytes 1024)
-      (hash/blake2b-512)
+      (hash/blake2b-256)
       (b64/encode true)
       (codecs/bytes->str)))