diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f3b8cbe..748592d 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -31,6 +31,8 @@ jobs:
           ruby-version: ruby
 
       - run: bundle install
+        env:
+          BUNDLE_FROZEN: true
 
       # zizmor complains that 'v1' is a ref that can be provided by both the branch and tag namespaces.
       # specify that we want the v1 branch.
diff --git a/.github/workflows/rubocop.yml b/.github/workflows/rubocop.yml
index 40fe044..f237ba4 100644
--- a/.github/workflows/rubocop.yml
+++ b/.github/workflows/rubocop.yml
@@ -23,4 +23,6 @@ jobs:
           ruby-version: 3.4
 
       - run: bundle install
+        env:
+          BUNDLE_FROZEN: true
       - run: bundle exec rake -t rubocop
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 70007ac..ae8d7fe 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -38,4 +38,6 @@ jobs:
           ruby-version: ${{ matrix.version }}
 
       - run: bundle install
+        env:
+          BUNDLE_FROZEN: true
       - run: bundle exec rake -t test
diff --git a/Gemfile.lock b/Gemfile.lock
index 545c73e..a77b658 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,6 +8,7 @@ GEM
   specs:
     ast (2.4.3)
     json (2.18.0)
+    json (2.18.0-java)
     language_server-protocol (3.17.0.5)
     lint_roller (1.1.0)
     minitest (6.0.1)
@@ -18,6 +19,7 @@ GEM
       racc
     prism (1.7.0)
     racc (1.8.1)
+    racc (1.8.1-java)
     rainbow (3.1.1)
     rake (13.3.1)
     regexp_parser (2.11.3)
@@ -56,6 +58,7 @@ GEM
     unicode-emoji (4.2.0)
 
 PLATFORMS
+  java
   ruby
   x86_64-linux
 
diff --git a/dev-bin/release.sh b/dev-bin/release.sh
index 47908a6..14660c2 100755
--- a/dev-bin/release.sh
+++ b/dev-bin/release.sh
@@ -32,6 +32,7 @@ fi
 
 check_command perl
 check_command rake
+check_command bundle
 
 # Check that we're not on the main branch
 current_branch=$(git branch --show-current)
@@ -84,6 +85,9 @@ fi
 
 perl -pi -e "s/(?<=s.version\s{,20}=\s{,20}\').+?(?=\')/$version/g" maxmind-db.gemspec
 
+# Update version in Gemfile.lock.
+bundle install
+
 echo $"Test results:"
 
 rake