diff --git a/Dockerfile b/Dockerfile
index 02ebe41d56..b1ebe77ceb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.3.1-bullseye
+FROM ruby:3.3.3-bullseye
 
 RUN apt-get update && apt-get install -y --no-install-recommends python3-pip shellcheck \
     && apt-get clean \
diff --git a/logorama/Gemfile b/logorama/Gemfile
index 8bc3fb0548..5bfcad187b 100644
--- a/logorama/Gemfile
+++ b/logorama/Gemfile
@@ -37,4 +37,4 @@ gem "tzinfo-data", platforms: %i[mingw mswin x64_mingw jruby]
 # Performance-booster for watching directories on Windows
 gem "wdm", "~> 0.1.0" if Gem.win_platform?
 
-ruby "3.3.1"
+ruby "3.3.4"
diff --git a/logorama/Gemfile.lock b/logorama/Gemfile.lock
index 64a4767ae2..f42b662148 100644
--- a/logorama/Gemfile.lock
+++ b/logorama/Gemfile.lock
@@ -119,7 +119,7 @@ DEPENDENCIES
   tzinfo-data
 
 RUBY VERSION
-   ruby 3.3.1p55
+   ruby 3.3.4p94
 
 BUNDLED WITH
    2.4.6
diff --git a/pdfstar/Gemfile b/pdfstar/Gemfile
index 2a14d55036..444a0d0b70 100644
--- a/pdfstar/Gemfile
+++ b/pdfstar/Gemfile
@@ -5,4 +5,4 @@ source "https://rubygems.org"
 gem "mdl"
 gem "rubocop", require: false
 
-ruby "3.3.1"
+ruby "3.3.4"
diff --git a/pdfstar/Gemfile.lock b/pdfstar/Gemfile.lock
index 1908b38ecf..a3b4cceb0f 100644
--- a/pdfstar/Gemfile.lock
+++ b/pdfstar/Gemfile.lock
@@ -69,7 +69,7 @@ DEPENDENCIES
   rubocop
 
 RUBY VERSION
-   ruby 3.3.1p55
+   ruby 3.3.4p94
 
 BUNDLED WITH
    2.4.6