diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2478ef6..02e1990 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,7 +43,7 @@ jobs:
           ./scripts/clean_legacy.sh
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ success() }} || ${{ failure() }}
         with:
           name: legacy-result
@@ -89,7 +89,7 @@ jobs:
           ./scripts/clean_kafka.sh
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ success() }} || ${{ failure() }}
         with:
           name: kafka-result
@@ -135,7 +135,7 @@ jobs:
           ./scripts/clean_hornbill.sh
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ success() }} || ${{ failure() }}
         with:
           name: hornbill-result
diff --git a/.github/workflows/ci_repo_dispatch.yml b/.github/workflows/ci_repo_dispatch.yml
index 4367339..ccaaaef 100644
--- a/.github/workflows/ci_repo_dispatch.yml
+++ b/.github/workflows/ci_repo_dispatch.yml
@@ -40,7 +40,7 @@ jobs:
           ./scripts/clean_legacy.sh
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ success() }} || ${{ failure() }}
         with:
           name: legacy-result
@@ -101,7 +101,7 @@ jobs:
           ./scripts/clean_kafka.sh
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ success() }} || ${{ failure() }}
         with:
           name: kafka-result
diff --git a/.github/workflows/ci_repo_dispatch_hornbill.yml b/.github/workflows/ci_repo_dispatch_hornbill.yml
index cbd7dee..dfce2f4 100644
--- a/.github/workflows/ci_repo_dispatch_hornbill.yml
+++ b/.github/workflows/ci_repo_dispatch_hornbill.yml
@@ -40,7 +40,7 @@ jobs:
           ./scripts/clean_hornbill.sh
 
       - name: Upload Artifact
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: ${{ success() }} || ${{ failure() }}
         with:
           name: hornbill-result
diff --git a/docker/meta-hornbill/start-meta.sh b/docker/meta-hornbill/start-meta.sh
index c483abc..738970b 100644
--- a/docker/meta-hornbill/start-meta.sh
+++ b/docker/meta-hornbill/start-meta.sh
@@ -4,10 +4,11 @@ while ! fdbcli -C /etc/fdb.cluster --exec "tenant get hstream" --timeout 1 ; do
     sleep 1;
 done
 
-/usr/local/bin/hstream-meta-server --host 0.0.0.0 \
-                                   --port 8964 \
-                                   --log-level trace \
-                                   --log-with-color \
-                                   --log-flush-immediately \
-                                   --backend /etc/fdb.cluster \
-                                   >> /tmp/$HOSTNAME.log 2>&1
+/usr/local/bin/hornbill meta \
+    --host 0.0.0.0 \
+    --port 8964 \
+    --log-level trace \
+    --log-with-color \
+    --log-flush-immediately \
+    --backend /etc/fdb.cluster \
+    >> /tmp/$HOSTNAME.log 2>&1
diff --git a/docker/node-hornbill/start-server.sh b/docker/node-hornbill/start-server.sh
index 871dbe6..7719f5d 100644
--- a/docker/node-hornbill/start-server.sh
+++ b/docker/node-hornbill/start-server.sh
@@ -10,7 +10,7 @@ done
 
 SERVER_ID=$(echo $(hostname) | cut -c 2-) # n_i -> i
 MY_IP=$(hostname -I | head -n1 | awk '{print $1;}')
-/usr/local/bin/hstream-server \
+/usr/local/bin/hornbill server \
     --bind-address 0.0.0.0 \
     --port 9092    \
     --metrics-port 6600 \
diff --git a/src/jepsen/hstream/kafka/db/hornbill.clj b/src/jepsen/hstream/kafka/db/hornbill.clj
index 2716fb4..7e93249 100644
--- a/src/jepsen/hstream/kafka/db/hornbill.clj
+++ b/src/jepsen/hstream/kafka/db/hornbill.clj
@@ -4,14 +4,11 @@
             [jepsen.control :as c]
             [jepsen.control.util :as cu]
             [jepsen.hstream.kafka.db :as redpanda.db]
-            [jepsen.hstream.common.utils :refer [parse-int]]
-            [jepsen.hstream.legacy.nemesis :as legacy-nemesis]))
+            [jepsen.hstream.common.utils :refer [parse-int]]))
 
 (def hornbill
-  "Program that launches hornbill server.
-  WARNING: This module refers to jepsen.hstream.legacy.nemesis,
-  which hardcodes the server name as 'hstream-server'."
-  "/usr/local/bin/hstream-server")
+  "Program that launches hornbill server."
+  "/usr/local/bin/hornbill")
 
 (def node-ips
   {:n1 "172.20.0.11"
@@ -34,7 +31,8 @@
 (defn f-hornbill-args
   "Generate the arguments for hornbill server."
   [node]
-  [:--bind-address "0.0.0.0"
+  [:server
+   :--bind-address "0.0.0.0"
    :--port 9092
    :--metrics-port 6600
    :--advertised-address (node-ips (keyword node))
@@ -45,6 +43,18 @@
    :--log-with-color
    ])
 
+;; FIXME: move to a standalone module to support hornbill nemesis
+(defn is-hornbill-server-on-node-dead?
+  [node]
+  (try+
+    (let [shell-out (c/on node
+                          (c/exec* "pgrep" "-f" "hornbill server" "||" "true"))]
+      (empty? shell-out))
+    (catch Object _
+      (info "Failed to check death on" node ":" (:message &throw-context)
+            "I think it is already dead.")
+      true)))
+
 (defn db
   "Hornbill for a particular version. No action is executed after the DB is ready."
   [version tcpdump]
@@ -65,11 +75,10 @@
     ;; WARNING: Starting hstream server is not idempotent now.
     ;;          However, the test usually call [:start :all].
     ;;          So we have to check if the server is already running.
-    ;; FIXME: The checking function 'is-hserver-on-node-dead?' is not
+    ;; FIXME: The checking function 'is-hornbill-server-on-node-dead?' is not
     ;;        well implemented...
-    ;; FIXME: Remove dependency on legacy-nemesis
     (start! [this test node]
-      (if (legacy-nemesis/is-hserver-on-node-dead? node)
+      (if (is-hornbill-server-on-node-dead? node)
         (c/su
          (apply (partial cu/start-daemon!
                          {:logfile (f-hornbill-log-file node)