diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c63fb1a5..b0c9f95c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,5 @@
 env:
-  RUBY_VERSION: 3.1.0
+  RUBY_VERSION: 3.3.4
   DATABASE_URL: postgres://postgres:postgres@localhost:5432/postgres
 
 name: CI
@@ -15,7 +15,7 @@ on:
 jobs:
   test:
     name: Rubocop + Rails Test
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.10
 
     services:
       postgres:
@@ -36,7 +36,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install Ruby ${{ env.RUBY_VERSION }}
-        uses: ruby/setup-ruby@v1.126.0
+        uses: ruby/setup-ruby@v1
         with:
           ruby-version: ${{ env.RUBY_VERSION }}
 
diff --git a/Dockerfile b/Dockerfile
index d1222cde..13edd982 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.17 AS alpine
+FROM alpine:3.20 AS alpine
 
 FROM ubuntu:20.04 AS bbb-playback
 ENV DEBIAN_FRONTEND=noninteractive
@@ -44,9 +44,9 @@ RUN apk add --no-cache \
     tzdata \
     shared-mime-info
 # ruby-start.
-# Install Ruby from sources since Scalelite does not use the version shipped with Apline.
-ARG RUBY_RELEASE="https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.6.tar.gz"
-ARG RUBY="ruby-3.1.6"
+# Install Ruby from sources since Scalelite does not necessarily use the version shipped with Apline.
+ARG RUBY_RELEASE="https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.6.tar.gz"
+ARG RUBY="ruby-3.3.6"
 RUN apk add --no-cache git make gcc g++ libc-dev pkgconfig \
     libxml2-dev libxslt-dev postgresql-dev coreutils curl wget bash \
     gnupg tar linux-headers bison readline-dev readline zlib-dev \
diff --git a/dockerfiles/v1/focal260-alpine b/dockerfiles/v1/focal260-alpine
index d1222cde..13edd982 100644
--- a/dockerfiles/v1/focal260-alpine
+++ b/dockerfiles/v1/focal260-alpine
@@ -1,4 +1,4 @@
-FROM alpine:3.17 AS alpine
+FROM alpine:3.20 AS alpine
 
 FROM ubuntu:20.04 AS bbb-playback
 ENV DEBIAN_FRONTEND=noninteractive
@@ -44,9 +44,9 @@ RUN apk add --no-cache \
     tzdata \
     shared-mime-info
 # ruby-start.
-# Install Ruby from sources since Scalelite does not use the version shipped with Apline.
-ARG RUBY_RELEASE="https://cache.ruby-lang.org/pub/ruby/3.1/ruby-3.1.6.tar.gz"
-ARG RUBY="ruby-3.1.6"
+# Install Ruby from sources since Scalelite does not necessarily use the version shipped with Apline.
+ARG RUBY_RELEASE="https://cache.ruby-lang.org/pub/ruby/3.3/ruby-3.3.6.tar.gz"
+ARG RUBY="ruby-3.3.6"
 RUN apk add --no-cache git make gcc g++ libc-dev pkgconfig \
     libxml2-dev libxslt-dev postgresql-dev coreutils curl wget bash \
     gnupg tar linux-headers bison readline-dev readline zlib-dev \