diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index a933171..4c810e7 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -3,7 +3,7 @@ version: 2
 updates:
   - package-ecosystem: "github-actions"
     directory: "/"
-    target-branch: "develop"
+    target-branch: "master"
     schedule:
       interval: "daily"
       timezone: "Europe/London"
diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index f696c6a..e5cca7c 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -52,7 +52,6 @@ jobs:
           '3.0.6',
           '3.1.3',
           '3.1.4',
-          '3.1.5',
           '3.2.0',
           '3.2.1',
           '3.2.2',
@@ -77,7 +76,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Prepare metadata for build
         id: metadata
@@ -195,7 +194,6 @@ jobs:
           '3.0.6',
           '3.1.3',
           '3.1.4',
-          '3.1.5',
           '3.2.0',
           '3.2.1',
           '3.2.2',
@@ -220,7 +218,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Prepare metadata for build
         id: metadata
@@ -358,7 +356,7 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Prepare metadata for build
         id: metadata
diff --git a/README.md b/README.md
index fed49f4..4405550 100644
--- a/README.md
+++ b/README.md
@@ -21,9 +21,8 @@ This repository contains workflow for the automatic Ruby images building using [
 | `3.0.6` | `3.0.6-jemalloc` | `jruby-9.4.1.0` |
 | `3.1.3` | `3.1.3-jemalloc` | `jruby-9.4.2.0` |
 | `3.1.4` | `3.1.4-jemalloc` | `jruby-9.4.3.0` |
-| `3.1.5` | `3.1.5-jemalloc` | `jruby-9.4.4.0` |
-| `3.2.0` | `3.2.0-jemalloc` | `jruby-9.4.5.0` |
-| `3.2.1` | `3.2.1-jemalloc` | |
+| `3.2.0` | `3.2.0-jemalloc` | `jruby-9.4.4.0` |
+| `3.2.1` | `3.2.1-jemalloc` | `jruby-9.4.5.0` |
 | `3.2.2` | `3.2.2-jemalloc` | |
 | `3.2.3` | `3.2.3-jemalloc` | |
 | `3.2.4` | `3.2.4-jemalloc` | |
diff --git a/jruby.docker b/jruby.docker
index 0106def..4f168e1 100644
--- a/jruby.docker
+++ b/jruby.docker
@@ -2,16 +2,22 @@
 
 ARG REGISTRY="docker.io"
 
-## BUILDER #####################################################################
+## BASE ########################################################################
 
-FROM ${REGISTRY}/essentialkaos/oraclelinux:8 as installer
-
-ARG RUBY_VERSION=9.3.9.0
+FROM ${REGISTRY}/essentialkaos/oraclelinux:8 as base
 
 RUN dnf -y -q install https://yum.kaos.st/kaos-repo-latest.el8.noarch.rpm && \
     dnf -y -q install rbenv rbinstall jre11 && \
-    dnf -y -q module disable "*" && dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
-    rbinstall jruby-${RUBY_VERSION} --no-progress
+    dnf -y -q module disable "*" && \
+    dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.*
+
+## INSTALLER ###################################################################
+
+FROM base as installer
+
+ARG RUBY_VERSION=9.3.9.0
+
+RUN rbinstall jruby-${RUBY_VERSION} --no-progress
 
 ## FINAL IMAGE  ################################################################
 
@@ -19,8 +25,8 @@ FROM ${REGISTRY}/essentialkaos/oraclelinux:8
 
 ARG RUBY_VERSION=9.3.9.0
 
-LABEL org.opencontainers.image.title="rbinstall-ruby" \
-      org.opencontainers.image.description="RBEnv with prebuilt Ruby" \
+LABEL org.opencontainers.image.title="rbinstall-jruby" \
+      org.opencontainers.image.description="RBEnv with prebuilt Ruby (JRuby-${RUBY_VERSION})" \
       org.opencontainers.image.vendor="ESSENTIAL KAOS" \
       org.opencontainers.image.authors="Anton Novojilov" \
       org.opencontainers.image.licenses="Apache-2.0" \
@@ -32,7 +38,8 @@ COPY --from=installer /usr/local/rbenv/versions/jruby-${RUBY_VERSION} \
 
 RUN dnf -y -q install https://yum.kaos.st/kaos-repo-latest.el8.noarch.rpm && \
     dnf -y -q install rbenv jre11 && \
-    dnf -y -q module disable "*" && dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
+    dnf -y -q module disable "*" && \
+    dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
     source /etc/profile.d/rbenv.sh && \
     rbenv global jruby-${RUBY_VERSION}
 
diff --git a/ruby-jemalloc.docker b/ruby-jemalloc.docker
index 1f54800..feb2a52 100644
--- a/ruby-jemalloc.docker
+++ b/ruby-jemalloc.docker
@@ -2,28 +2,34 @@
 
 ARG REGISTRY="docker.io"
 
-## BUILDER #####################################################################
+## BASE ########################################################################
 
-FROM ${REGISTRY}/essentialkaos/oraclelinux:8 as installer
+FROM ${REGISTRY}/essentialkaos/oraclelinux:8 as base
+
+RUN dnf -y -q install https://yum.kaos.st/kaos-repo-latest.el8.noarch.rpm && \
+    dnf -y -q install rbenv rbinstall libyaml jemalloc && \
+    dnf -y -q module disable "*" && \
+    dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.*
+
+## INSTALLER ###################################################################
+
+FROM base as installer
 
 ARG RUBY_VERSION=3.2.0
 ARG WITH_STATIC=no
 
-RUN dnf -y -q install https://yum.kaos.st/kaos-repo-latest.el8.noarch.rpm && \
-    dnf -y -q install rbenv rbinstall libyaml jemalloc && \
-    dnf -y -q module disable "*" && dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
-    rbinstall ${RUBY_VERSION}-jemalloc --no-progress && \
+RUN rbinstall ${RUBY_VERSION}-jemalloc --no-progress && \
     if [ "${WITH_STATIC}" != "no" ] ; then rm -f /usr/local/rbenv/versions/${RUBY_VERSION}/lib/libruby-static.a ; fi
 
-## FINAL IMAGE  ################################################################
+## FINAL IMAGE #################################################################
 
 FROM ${REGISTRY}/essentialkaos/oraclelinux:8
 
 ARG RUBY_VERSION=3.2.0
 ARG WITH_GCC=no
 
-LABEL org.opencontainers.image.title="rbinstall-ruby" \
-      org.opencontainers.image.description="RBEnv with prebuilt Ruby" \
+LABEL org.opencontainers.image.title="rbinstall-ruby-jemalloc" \
+      org.opencontainers.image.description="RBEnv with prebuilt Ruby (${RUBY_VERSION}-jemalloc)" \
       org.opencontainers.image.vendor="ESSENTIAL KAOS" \
       org.opencontainers.image.authors="Anton Novojilov" \
       org.opencontainers.image.licenses="Apache-2.0" \
@@ -36,7 +42,8 @@ COPY --from=installer /usr/local/rbenv/versions/${RUBY_VERSION}-jemalloc \
 RUN dnf -y -q install https://yum.kaos.st/kaos-repo-latest.el8.noarch.rpm && \
     dnf -y -q install rbenv libyaml jemalloc && \
     if [ "${WITH_GCC}" != "no" ] ; then dnf -y -q install gcc ; fi && \
-    dnf -y -q module disable "*" && dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
+    dnf -y -q module disable "*" && \
+    dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
     source /etc/profile.d/rbenv.sh && \
     rbenv global ${RUBY_VERSION}-jemalloc
 
diff --git a/ruby.docker b/ruby.docker
index 6800e99..0b724f6 100644
--- a/ruby.docker
+++ b/ruby.docker
@@ -2,20 +2,26 @@
 
 ARG REGISTRY="docker.io"
 
-## BUILDER #####################################################################
+## BASE ########################################################################
 
-FROM ${REGISTRY}/essentialkaos/oraclelinux:8 as installer
+FROM ${REGISTRY}/essentialkaos/oraclelinux:8 as base
+
+RUN dnf -y -q install https://yum.kaos.st/kaos-repo-latest.el8.noarch.rpm && \
+    dnf -y -q install rbenv rbinstall libyaml && \
+    dnf -y -q module disable "*" && \
+    dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.*
+
+## INSTALLER ###################################################################
+
+FROM base as installer
 
 ARG RUBY_VERSION=3.2.0
 ARG WITH_STATIC=no
 
-RUN dnf -y -q install https://yum.kaos.st/kaos-repo-latest.el8.noarch.rpm && \
-    dnf -y -q install rbenv rbinstall libyaml && \
-    dnf -y -q module disable "*" && dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
-    rbinstall ${RUBY_VERSION} --no-progress && \
+RUN rbinstall ${RUBY_VERSION} --no-progress && \
     if [ "${WITH_STATIC}" != "no" ] ; then rm -f /usr/local/rbenv/versions/${RUBY_VERSION}/lib/libruby-static.a ; fi
 
-## FINAL IMAGE  ################################################################
+## FINAL IMAGE #################################################################
 
 FROM ${REGISTRY}/essentialkaos/oraclelinux:8
 
@@ -23,7 +29,7 @@ ARG RUBY_VERSION=3.2.0
 ARG WITH_GCC=no
 
 LABEL org.opencontainers.image.title="rbinstall-ruby" \
-      org.opencontainers.image.description="RBEnv with prebuilt Ruby" \
+      org.opencontainers.image.description="RBEnv with prebuilt Ruby (${RUBY_VERSION})" \
       org.opencontainers.image.vendor="ESSENTIAL KAOS" \
       org.opencontainers.image.authors="Anton Novojilov" \
       org.opencontainers.image.licenses="Apache-2.0" \
@@ -36,7 +42,8 @@ COPY --from=installer /usr/local/rbenv/versions/${RUBY_VERSION} \
 RUN dnf -y -q install https://yum.kaos.st/kaos-repo-latest.el8.noarch.rpm && \
     dnf -y -q install rbenv libyaml && \
     if [ "${WITH_GCC}" != "no" ] ; then dnf -y -q install gcc ; fi && \
-    dnf -y -q module disable "*" && dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
+    dnf -y -q module disable "*" && \
+    dnf clean all && rm -rf /var/cache/dnf /var/log/dnf.* && \
     source /etc/profile.d/rbenv.sh && \
     rbenv global ${RUBY_VERSION}