diff --git a/internal/buildscripts/packaging/choco/splunk-otel-collector/tools/fluentd.ps1 b/internal/buildscripts/packaging/choco/splunk-otel-collector/tools/fluentd.ps1
index 830125f8ba..5275778db8 100644
--- a/internal/buildscripts/packaging/choco/splunk-otel-collector/tools/fluentd.ps1
+++ b/internal/buildscripts/packaging/choco/splunk-otel-collector/tools/fluentd.ps1
@@ -1,6 +1,6 @@
 [bool]$SkipFluend = $FALSE
 
-$fluentd_msi_name = "td-agent-4.1.1-x64.msi"
+$fluentd_msi_name = "td-agent-4.3.0-x64.msi"
 $fluentd_dl_url = "https://packages.treasuredata.com/4/windows/$fluentd_msi_name"
 try {
     Resolve-Path $env:SYSTEMDRIVE
diff --git a/internal/buildscripts/packaging/installer/install.ps1 b/internal/buildscripts/packaging/installer/install.ps1
index 2416782942..3be30772d3 100644
--- a/internal/buildscripts/packaging/installer/install.ps1
+++ b/internal/buildscripts/packaging/installer/install.ps1
@@ -145,7 +145,7 @@ try {
 }
 $regkey = "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"
 
-$fluentd_msi_name = "td-agent-4.1.0-x64.msi"
+$fluentd_msi_name = "td-agent-4.3.0-x64.msi"
 $fluentd_dl_url = "https://packages.treasuredata.com/4/windows/$fluentd_msi_name"
 try {
     Resolve-Path $env:SYSTEMDRIVE
diff --git a/internal/buildscripts/packaging/installer/install.sh b/internal/buildscripts/packaging/installer/install.sh
index c4774629e4..0f4d60cc74 100755
--- a/internal/buildscripts/packaging/installer/install.sh
+++ b/internal/buildscripts/packaging/installer/install.sh
@@ -88,7 +88,7 @@ default_realm="us0"
 default_memory_size="512"
 
 default_collector_version="latest"
-default_td_agent_version="4.1.0"
+default_td_agent_version="4.3.0"
 default_td_agent_version_jessie="3.3.0-1"
 default_td_agent_version_stretch="3.7.1-0"