diff --git a/.github/workflows/build-containers.yml b/.github/workflows/build-containers.yml
index 3563032..ab47576 100644
--- a/.github/workflows/build-containers.yml
+++ b/.github/workflows/build-containers.yml
@@ -14,7 +14,7 @@ on:
     workflows: ["add-tag"]
     types:
       - completed
-      
+
 concurrency:
   group: '${{ github.workflow }}-${{ github.job }}-${{ github.head_ref || github.ref_name }}'
   cancel-in-progress: true
@@ -95,7 +95,7 @@ jobs:
           - 'alpine-3.17'
         package_ruby_ver:
           - '3.2.5'
-          - '3.3.4'
+          - '3.3.5'
     container:
       image: ghcr.io/tamatebako/tebako-${{ matrix.container }}:latest
 
@@ -127,7 +127,7 @@ jobs:
           - 'alpine-3.17'
         package_ruby_ver:
           - '3.2.5'
-          - '3.3.4'
+          - '3.3.5'
 
     steps:
     - name: Checkout fontist
diff --git a/README.adoc b/README.adoc
index 0bc1866..b9be582 100644
--- a/README.adoc
+++ b/README.adoc
@@ -38,7 +38,7 @@ This container is based on Alpine Linux 3.17 (`musl`), offering a smaller image
 size. Suitable for those who prefer a minimalistic approach.
 
 Both containers are tailored for Tebako packaging, featuring preinstalled Ruby
-environments versions 3.2.5 and 3.3.4.
+environments versions 3.2.5 and 3.3.5.
 
 
 == Using the Tebako containers
diff --git a/alpine-3.17.Dockerfile b/alpine-3.17.Dockerfile
index e4e7909..36e4baa 100644
--- a/alpine-3.17.Dockerfile
+++ b/alpine-3.17.Dockerfile
@@ -54,12 +54,12 @@ ENV CXX=clang++
 ENV TEBAKO_PREFIX=/root/.tebako
 COPY test /root/test
 
-# Create packaging environment for Ruby 3.3.4, 3.2.5
+# Create packaging environment for Ruby 3.3.5, 3.2.5
 # Test and "warm up" since initialization is fully finished after the first packaging
 RUN gem install tebako && \
-    tebako setup -R 3.3.4 && \
+    tebako setup -R 3.3.5 && \
     tebako setup -R 3.2.5 && \
-    tebako press -R 3.3.4 -r /root/test -e tebako-test-run.rb -o ruby-3.3.4-package && \
+    tebako press -R 3.3.5 -r /root/test -e tebako-test-run.rb -o ruby-3.3.5-package && \
     tebako press -R 3.2.5 -r /root/test -e tebako-test-run.rb -o ruby-3.2.5-package && \
     rm ruby-*-package
 
diff --git a/ubuntu-20.04.Dockerfile b/ubuntu-20.04.Dockerfile
index a9ae4c9..fee1dd3 100644
--- a/ubuntu-20.04.Dockerfile
+++ b/ubuntu-20.04.Dockerfile
@@ -58,12 +58,12 @@ RUN /opt/tools/tools.sh install_cmake && \
 ENV TEBAKO_PREFIX=/root/.tebako
 COPY test /root/test
 
-# Create packaging environment for Ruby 3.3.4, 3.2.5
+# Create packaging environment for Ruby 3.3.5, 3.2.5
 # Test and "warm up" since initialization is fully finished after the first packaging
 RUN gem install tebako && \
-    tebako setup -R 3.3.4 && \
+    tebako setup -R 3.3.5 && \
     tebako setup -R 3.2.5 && \
-    tebako press -R 3.3.4 -r /root/test -e tebako-test-run.rb -o ruby-3.3.4-package && \
+    tebako press -R 3.3.5 -r /root/test -e tebako-test-run.rb -o ruby-3.3.5-package && \
     tebako press -R 3.2.5 -r /root/test -e tebako-test-run.rb -o ruby-3.2.5-package && \
     rm ruby-*-package