diff --git a/.github/workflows/beekeeper.yml b/.github/workflows/beekeeper.yml
index 95a09cfc1dc..b785ebf2f23 100644
--- a/.github/workflows/beekeeper.yml
+++ b/.github/workflows/beekeeper.yml
@@ -162,6 +162,9 @@ jobs:
       - name: Test staking
         id: stake
         run: timeout ${TIMEOUT} beekeeper check --cluster-name local-dns --checks ci-stake
+      - name: Test redundancy
+        id: redundancy
+        run: timeout ${TIMEOUT} beekeeper check --cluster-name local-dns --checks ci-redundancy
       - name: Collect debug artifacts
         if: failure()
         run: |
diff --git a/pkg/api/chunk.go b/pkg/api/chunk.go
index 25e1d6c65ed..27ed9e2a848 100644
--- a/pkg/api/chunk.go
+++ b/pkg/api/chunk.go
@@ -109,14 +109,15 @@ func (s *Service) chunkUploadHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	chunk, err := cac.NewWithDataSpan(data)
+	hash, err := cac.DoHash(data[swarm.SpanSize:], data[:swarm.SpanSize])
 	if err != nil {
-		logger.Debug("chunk upload: create chunk failed", "error", err)
-		logger.Error(nil, "chunk upload: create chunk error")
-		jsonhttp.InternalServerError(ow, "create chunk error")
+		logger.Debug("chunk upload: hash data", "error", err)
+		logger.Error(nil, "chunk upload: hash data error")
+		jsonhttp.InternalServerError(ow, "hash data error")
 		return
 	}
 
+	chunk := swarm.NewChunk(swarm.NewAddress(hash), data)
 	err = putter.Put(r.Context(), chunk)
 	if err != nil {
 		logger.Debug("chunk upload: write chunk failed", "chunk_address", chunk.Address(), "error", err)
diff --git a/pkg/api/router.go b/pkg/api/router.go
index 7c854543b88..351608a5e16 100644
--- a/pkg/api/router.go
+++ b/pkg/api/router.go
@@ -220,7 +220,7 @@ func (s *Service) mountAPI() {
 
 	handle("/chunks", jsonhttp.MethodHandler{
 		"POST": web.ChainHandlers(
-			jsonhttp.NewMaxBodyBytesHandler(swarm.ChunkWithSpanSize),
+			jsonhttp.NewMaxBodyBytesHandler(swarm.SocMaxChunkSize),
 			web.FinalHandlerFunc(s.chunkUploadHandler),
 		),
 	})