diff --git a/Dockerfile.template.erb b/Dockerfile.template.erb
index b2b14256..2b7be45f 100644
--- a/Dockerfile.template.erb
+++ b/Dockerfile.template.erb
@@ -63,7 +63,7 @@ RUN refreshenv \
 && type "c:\ProgramData\gemrc" \
 && gem install oj -v 3.16.11 \
 && gem install json -v 2.13.2 \
-&& gem install rexml -v 3.4.1 \
+&& gem install rexml -v 3.4.4 \
 && gem install fluentd -v <%= fluentd_ver %> \
 && gem install win32-service -v 2.3.2 \
 && gem install win32-ipc -v 0.7.0 \
@@ -100,7 +100,7 @@ RUN apt-get update \
  && export MAKEFLAGS=-j$(nproc) \
  && gem install oj -v 3.16.11 \
  && gem install json -v 2.13.2 \
- && gem install rexml -v 3.4.1 \
+ && gem install rexml -v 3.4.4 \
  && gem install async -v 2.24.0 \
  && gem install async-http -v 0.89.0 \
  && gem install fluentd -v <%= fluentd_ver %> \
diff --git a/Makefile b/Makefile
index 2e66653a..da6120d3 100644
--- a/Makefile
+++ b/Makefile
@@ -17,19 +17,19 @@
 
 IMAGE_NAME := fluent/fluentd
 X86_IMAGES := \
-	v1.19/debian:v1.19.1-debian-amd64-2.0,v1.19-debian-amd64-2,v1.19.1-debian-amd64,edge-debian-amd64
+	v1.19/debian:v1.19.1-debian-amd64-2.1,v1.19-debian-amd64-2,v1.19.1-debian-amd64,edge-debian-amd64
 #	<Dockerfile>:<version>,<tag1>,<tag2>,...
 
 # Define images for running on ARM platforms
 ARM_IMAGES := \
-	v1.19/armhf/debian:v1.19.1-debian-armhf-2.0,v1.19-debian-armhf-2,v1.19.1-debian-armhf,edge-debian-armhf
+	v1.19/armhf/debian:v1.19.1-debian-armhf-2.1,v1.19-debian-armhf-2,v1.19.1-debian-armhf,edge-debian-armhf
 
 # Define images for running on ARM64 platforms
 ARM64_IMAGES := \
-	v1.19/arm64/debian:v1.19.1-debian-arm64-2.0,v1.19-debian-arm64-2,v1.19.1-debian-arm64,edge-debian-arm64
+	v1.19/arm64/debian:v1.19.1-debian-arm64-2.1,v1.19-debian-arm64-2,v1.19.1-debian-arm64,edge-debian-arm64
 WINDOWS_IMAGES := \
-	v1.19/windows-ltsc2019:v1.19.1-windows-ltsc2019-1.0,v1.19-windows-ltsc2019-1 \
-	v1.19/windows-ltsc2022:v1.19.1-windows-ltsc2022-1.0,v1.19-windows-ltsc2022-1
+	v1.19/windows-ltsc2019:v1.19.1-windows-ltsc2019-1.1,v1.19-windows-ltsc2019-1 \
+	v1.19/windows-ltsc2022:v1.19.1-windows-ltsc2022-1.1,v1.19-windows-ltsc2022-1
 
 LINUX_IMAGES := $(X86_IMAGES) $(ARM_IMAGES) $(ARM64_IMAGES)
 ALL_IMAGES := $(LINUX_IMAGES) $(WINDOWS_IMAGES)
diff --git a/README.md b/README.md
index 46fbded2..fe880ab2 100644
--- a/README.md
+++ b/README.md
@@ -22,19 +22,19 @@ These tags have image version postfix. This updates many places so we need feedb
 
 Current images use fluentd v1 series.
 
-- `v1.19.1-2.0`, `v1.19-2`, `edge`, `latest`
+- `v1.19.1-2.1`, `v1.19-2`, `edge`, `latest`
   [(v1.19/debian/Dockerfile)][fluentd-1-debian] (Since v1.19.0, alpine image will not be shipped anymore.)
-- `v1.19.1-debian-2.0`, `v1.19-debian-2`, `edge-debian`
+- `v1.19.1-debian-2.1`, `v1.19-debian-2`, `edge-debian`
   (multiarch image for arm64(AArch64), armhf and amd64(x86_64))
-- `v1.19.1-debian-amd64-2.0`, `v1.19-debian-amd64-2`, `edge-debian-amd64`
+- `v1.19.1-debian-amd64-2.1`, `v1.19-debian-amd64-2`, `edge-debian-amd64`
   [(v1.19/debian/Dockerfile)][fluentd-1-debian]
-- `v1.19.1-debian-arm64-2.0`, `v1.19-debian-arm64-2`, `edge-debian-arm64`
+- `v1.19.1-debian-arm64-2.1`, `v1.19-debian-arm64-2`, `edge-debian-arm64`
   [(v1.19/arm64/debian/Dockerfile)][fluentd-1-debian-arm64]
-- `v1.19.1-debian-armhf-2.0`, `v1.19-debian-armhf-2`, `edge-debian-armhf`
+- `v1.19.1-debian-armhf-2.1`, `v1.19-debian-armhf-2`, `edge-debian-armhf`
   [(v1.19/armhf/debian/Dockerfile)][fluentd-1-debian-armhf]
-- `v1.19.1-windows-ltsc2019-1.0`, `v1.19-windows-ltsc2019-1`
+- `v1.19.1-windows-ltsc2019-1.1`, `v1.19-windows-ltsc2019-1`
   [(v1.19/windows-ltsc2019/Dockerfile)][fluentd-1-ltsc2019-windows]
-- `v1.19.1-windows-ltsc2022-1.0`, `v1.19-windows-ltsc2022-1`
+- `v1.19.1-windows-ltsc2022-1.1`, `v1.19-windows-ltsc2022-1`
   [(v1.19/windows-ltsc2022/Dockerfile)][fluentd-1-ltsc2022-windows]
 
 > [!TIP]
diff --git a/v1.19/arm64/debian/Dockerfile b/v1.19/arm64/debian/Dockerfile
index 3fff8a62..0e26a81b 100644
--- a/v1.19/arm64/debian/Dockerfile
+++ b/v1.19/arm64/debian/Dockerfile
@@ -22,7 +22,7 @@ RUN apt-get update \
  && export MAKEFLAGS=-j$(nproc) \
  && gem install oj -v 3.16.11 \
  && gem install json -v 2.13.2 \
- && gem install rexml -v 3.4.1 \
+ && gem install rexml -v 3.4.4 \
  && gem install async -v 2.24.0 \
  && gem install async-http -v 0.89.0 \
  && gem install fluentd -v 1.19.1 \
diff --git a/v1.19/armhf/debian/Dockerfile b/v1.19/armhf/debian/Dockerfile
index f965805e..fec991be 100644
--- a/v1.19/armhf/debian/Dockerfile
+++ b/v1.19/armhf/debian/Dockerfile
@@ -31,7 +31,7 @@ RUN apt-get update \
  && export MAKEFLAGS=-j$(nproc) \
  && gem install oj -v 3.16.11 \
  && gem install json -v 2.13.2 \
- && gem install rexml -v 3.4.1 \
+ && gem install rexml -v 3.4.4 \
  && gem install async -v 2.24.0 \
  && gem install async-http -v 0.89.0 \
  && gem install fluentd -v 1.19.1 \
diff --git a/v1.19/debian/Dockerfile b/v1.19/debian/Dockerfile
index c319b315..bff1e375 100644
--- a/v1.19/debian/Dockerfile
+++ b/v1.19/debian/Dockerfile
@@ -20,7 +20,7 @@ RUN apt-get update \
  && export MAKEFLAGS=-j$(nproc) \
  && gem install oj -v 3.16.11 \
  && gem install json -v 2.13.2 \
- && gem install rexml -v 3.4.1 \
+ && gem install rexml -v 3.4.4 \
  && gem install async -v 2.24.0 \
  && gem install async-http -v 0.89.0 \
  && gem install fluentd -v 1.19.1 \
diff --git a/v1.19/windows-ltsc2019/Dockerfile b/v1.19/windows-ltsc2019/Dockerfile
index c7baa3e6..0f46ad3b 100644
--- a/v1.19/windows-ltsc2019/Dockerfile
+++ b/v1.19/windows-ltsc2019/Dockerfile
@@ -19,7 +19,7 @@ RUN refreshenv \
 && type "c:\ProgramData\gemrc" \
 && gem install oj -v 3.16.11 \
 && gem install json -v 2.13.2 \
-&& gem install rexml -v 3.4.1 \
+&& gem install rexml -v 3.4.4 \
 && gem install fluentd -v 1.19.1 \
 && gem install win32-service -v 2.3.2 \
 && gem install win32-ipc -v 0.7.0 \
diff --git a/v1.19/windows-ltsc2022/Dockerfile b/v1.19/windows-ltsc2022/Dockerfile
index f68ae790..1b3922e0 100644
--- a/v1.19/windows-ltsc2022/Dockerfile
+++ b/v1.19/windows-ltsc2022/Dockerfile
@@ -19,7 +19,7 @@ RUN refreshenv \
 && type "c:\ProgramData\gemrc" \
 && gem install oj -v 3.16.11 \
 && gem install json -v 2.13.2 \
-&& gem install rexml -v 3.4.1 \
+&& gem install rexml -v 3.4.4 \
 && gem install fluentd -v 1.19.1 \
 && gem install win32-service -v 2.3.2 \
 && gem install win32-ipc -v 0.7.0 \