diff --git a/apps/emqx_bridge_azure_event_hub/rebar.config b/apps/emqx_bridge_azure_event_hub/rebar.config
index f10ef1646..269239620 100644
--- a/apps/emqx_bridge_azure_event_hub/rebar.config
+++ b/apps/emqx_bridge_azure_event_hub/rebar.config
@@ -3,7 +3,7 @@
 {erl_opts, [debug_info]}.
 {deps, [
     {wolff, {git, "https://github.com/kafka4beam/wolff.git", {tag, "1.10.2"}}},
-    {kafka_protocol, {git, "https://github.com/kafka4beam/kafka_protocol.git", {tag, "4.1.3"}}},
+    {kafka_protocol, {git, "https://github.com/kafka4beam/kafka_protocol.git", {tag, "4.1.5"}}},
     {brod_gssapi, {git, "https://github.com/kafka4beam/brod_gssapi.git", {tag, "v0.1.1"}}},
     {brod, {git, "https://github.com/kafka4beam/brod.git", {tag, "3.16.8"}}},
     {snappyer, "1.2.9"},
diff --git a/apps/emqx_bridge_confluent/rebar.config b/apps/emqx_bridge_confluent/rebar.config
index 93f8306f7..0519e39c9 100644
--- a/apps/emqx_bridge_confluent/rebar.config
+++ b/apps/emqx_bridge_confluent/rebar.config
@@ -3,7 +3,7 @@
 {erl_opts, [debug_info]}.
 {deps, [
     {wolff, {git, "https://github.com/kafka4beam/wolff.git", {tag, "1.10.2"}}},
-    {kafka_protocol, {git, "https://github.com/kafka4beam/kafka_protocol.git", {tag, "4.1.3"}}},
+    {kafka_protocol, {git, "https://github.com/kafka4beam/kafka_protocol.git", {tag, "4.1.5"}}},
     {brod_gssapi, {git, "https://github.com/kafka4beam/brod_gssapi.git", {tag, "v0.1.1"}}},
     {brod, {git, "https://github.com/kafka4beam/brod.git", {tag, "3.16.8"}}},
     {snappyer, "1.2.9"},
diff --git a/apps/emqx_bridge_kafka/rebar.config b/apps/emqx_bridge_kafka/rebar.config
index 6e1ef0007..7c98bf571 100644
--- a/apps/emqx_bridge_kafka/rebar.config
+++ b/apps/emqx_bridge_kafka/rebar.config
@@ -3,7 +3,7 @@
 {erl_opts, [debug_info]}.
 {deps, [
     {wolff, {git, "https://github.com/kafka4beam/wolff.git", {tag, "1.10.2"}}},
-    {kafka_protocol, {git, "https://github.com/kafka4beam/kafka_protocol.git", {tag, "4.1.3"}}},
+    {kafka_protocol, {git, "https://github.com/kafka4beam/kafka_protocol.git", {tag, "4.1.5"}}},
     {brod_gssapi, {git, "https://github.com/kafka4beam/brod_gssapi.git", {tag, "v0.1.1"}}},
     {brod, {git, "https://github.com/kafka4beam/brod.git", {tag, "3.16.8"}}},
     {snappyer, "1.2.9"},
diff --git a/changes/ee/fix-12522.en.md b/changes/ee/fix-12522.en.md
new file mode 100644
index 000000000..aa8bb76ad
--- /dev/null
+++ b/changes/ee/fix-12522.en.md
@@ -0,0 +1,4 @@
+Improved parsing for Kafka bootstrap hosts.
+
+Previously, spaces following commas in the Kafka bootstrap hosts list were included in the parsing result.
+This inclusion led to connection timeouts or DNS resolution failures due to the malformed host entries.
diff --git a/mix.exs b/mix.exs
index c2ef491e9..b40ca2168 100644
--- a/mix.exs
+++ b/mix.exs
@@ -203,7 +203,7 @@ defmodule EMQXUmbrella.MixProject do
       {:hstreamdb_erl, github: "hstreamdb/hstreamdb_erl", tag: "0.4.5+v0.16.1"},
       {:influxdb, github: "emqx/influxdb-client-erl", tag: "1.1.13", override: true},
       {:wolff, github: "kafka4beam/wolff", tag: "1.10.2"},
-      {:kafka_protocol, github: "kafka4beam/kafka_protocol", tag: "4.1.3", override: true},
+      {:kafka_protocol, github: "kafka4beam/kafka_protocol", tag: "4.1.5", override: true},
       {:brod_gssapi, github: "kafka4beam/brod_gssapi", tag: "v0.1.1"},
       {:brod, github: "kafka4beam/brod", tag: "3.16.8"},
       {:snappyer, "1.2.9", override: true},