diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0761b75..29be3d7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -73,7 +73,7 @@ jobs:
       - name: Install Ruby jruby-9.3.6.0
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 'jruby-9.4.1.0'
+          ruby-version: 'jruby-9.4.2.0'
 
       - name: Build gem
         run: gem build *.gemspec
diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index eac55b3..54dab4b 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -18,7 +18,7 @@ jobs:
     strategy:
       matrix:
         ruby-version:
-          - 'jruby-9.4.1.0'
+          - 'jruby-9.4.2.0'
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby
@@ -34,7 +34,7 @@ jobs:
     strategy:
       matrix:
         ruby-version:
-          - 'jruby-9.4.1.0'
+          - 'jruby-9.4.2.0'
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby
diff --git a/install-gemfile-lock b/install-gemfile-lock
index 07cbd49..94a5e5e 100755
--- a/install-gemfile-lock
+++ b/install-gemfile-lock
@@ -3,5 +3,5 @@
 # The container tag should closely match what is used in `docker/Dockerfile` in vmpooler-deployment
 docker run -it --rm \
   -v $(pwd):/app \
-  jruby:9.4.1.0-jdk11 \
+  jruby:9.4.2.0-jdk11 \
   /bin/bash -c 'apt-get update -qq && apt-get install -y --no-install-recommends make git netbase && cd /app && gem install bundler && bundle install --jobs 3; echo "LOCK_FILE_UPDATE_EXIT_CODE=$?"'
diff --git a/release-prep b/release-prep
index e3c2b0d..072115e 100755
--- a/release-prep
+++ b/release-prep
@@ -5,7 +5,7 @@
 # Update Gemfile.lock
 docker run -it --rm \
   -v $(pwd):/app \
-  jruby:9.4.1.0-jdk11 \
+  jruby:9.4.2.0-jdk11 \
   /bin/bash -c 'apt-get update -qq && apt-get install -y --no-install-recommends git make netbase && cd /app && gem install bundler && bundle install --jobs 3; echo "LOCK_FILE_UPDATE_EXIT_CODE=$?"'
 
 # Update Changelog
diff --git a/update-gemfile-lock b/update-gemfile-lock
index 46c4873..68ea73f 100755
--- a/update-gemfile-lock
+++ b/update-gemfile-lock
@@ -3,5 +3,5 @@
 # The container tag should closely match what is used in `docker/Dockerfile` in vmpooler-deployment
 docker run -it --rm \
   -v $(pwd):/app \
-  jruby:9.4.1.0-jdk11 \
+  jruby:9.4.2.0-jdk11 \
   /bin/bash -c 'apt-get update -qq && apt-get install -y --no-install-recommends git make netbase && cd /app && gem install bundler && bundle install --jobs 3 && bundle update; echo "LOCK_FILE_UPDATE_EXIT_CODE=$?"'