diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9b6a0d6..003cd8b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -51,6 +51,15 @@ commands:
             - &cache-key gem-cache-v4-{{ checksum "<< parameters.path >>/<< parameters.gemspec-file >>" }}-<< parameters.ruby-image >>
             - gem-cache-v4-{{ checksum "<< parameters.path >>/<< parameters.gemspec-file >>" }}
             - gem-cache-v4-
+      - when:
+          condition:
+            equal: [ jruby:9.4-dev-jdk11, << parameters.ruby-image >> ]
+          steps:
+            - run:
+                name: Install Git
+                command: |
+                  apt-get update
+                  apt-get install -y git
       - run:
           name: Install dependencies
           command: |
@@ -72,6 +81,7 @@ commands:
       - run:
           name: Collecting coverage reports
           command: |
+            apt-get update && apt-get install -y perl
             curl -Os https://uploader.codecov.io/latest/linux/codecov
             curl -Os https://uploader.codecov.io/latest/linux/codecov.SHA256SUM
             curl -Os https://uploader.codecov.io/latest/linux/codecov.SHA256SUM.sig
@@ -271,10 +281,10 @@ workflows:
             - client-r2.4
       - tests-ruby:
           name: client-jruby
-          ruby-image: "jruby:9.3.1.0-jdk11"
+          ruby-image: "jruby:9.4-dev-jdk11"
       - tests-ruby:
           name: APIs-jruby
-          ruby-image: "jruby:9.3.1.0-jdk11"
+          ruby-image: "jruby:9.4-dev-jdk11"
           gemspec-file: influxdb-client-apis.gemspec
           path: ./apis
           requires:
diff --git a/.rubocop-cops.yml b/.rubocop-cops.yml
index 6b42492..2e52b5c 100644
--- a/.rubocop-cops.yml
+++ b/.rubocop-cops.yml
@@ -40,3 +40,5 @@ Metrics/PerceivedComplexity:
   Max: 15
 Metrics/ParameterLists:
   Max: 10
+Style/EmptyLiteral:
+  Enabled: false
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 494f687..1a4d21b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 ## 3.3.0 [unreleased]
 
+### CI
+1. [152](https://github.com/influxdata/influxdb-client-ruby/pull/152):
+- Switches the JRuby jobs from jruby:9.3.1.0-jdk11 to jruby:9.4-dev-jdk11.
+- Adds a monkeypatch for REXML::Document#initialize to tolerate malformed XML emitted during Cobertura report formatting.
+
 1. [#149](https://github.com/influxdata/influxdb-client-ruby/pull/149): Fix FrozenError in Point#to_line_protocol when frozen string literals are enabled
 
 ## 3.2.0 [2024-11-27]
diff --git a/apis/test/test_helper.rb b/apis/test/test_helper.rb
index faa80a4..bc5d3ff 100644
--- a/apis/test/test_helper.rb
+++ b/apis/test/test_helper.rb
@@ -26,6 +26,26 @@
 if ENV['CI'] == 'true'
   require 'simplecov-cobertura'
   SimpleCov.formatter = SimpleCov::Formatter::CoberturaFormatter
+
+  # Monkeypatch REXML to handle malformed XML from simplecov-cobertura 1.4.2/2.1.0
+  # see: https://github.com/dashingrocket/simplecov-cobertura/issues/31
+  # TODO: remove this when simplecov-cobertura is updated
+  require 'rexml/document'
+  module REXML
+    class Document
+      alias original_initialize initialize
+      def initialize(source = nil, context = {})
+        if source.is_a?(String) && source.include?('Generated by simplecov-cobertura') && !source.include?('<coverage')
+          source_with_root = source + "\n<coverage/>"
+          original_initialize(source_with_root, context)
+          # Remove the dummy root element so simplecov-cobertura can add its own
+          delete_element('/coverage')
+        else
+          original_initialize(source, context)
+        end
+      end
+    end
+  end
 end
 
 $LOAD_PATH.unshift File.expand_path('../lib', __dir__)
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 7fdd8d9..5150122 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -27,6 +27,26 @@
 if ENV['CI'] == 'true'
   require 'simplecov-cobertura'
   SimpleCov.formatter = SimpleCov::Formatter::CoberturaFormatter
+
+  # Monkeypatch REXML to handle malformed XML from simplecov-cobertura 1.4.2/2.1.0
+  # see: https://github.com/dashingrocket/simplecov-cobertura/issues/31
+  # TODO: remove this when simplecov-cobertura is updated
+  require 'rexml/document'
+  module REXML
+    class Document
+      alias original_initialize initialize
+      def initialize(source = nil, context = {})
+        if source.is_a?(String) && source.include?('Generated by simplecov-cobertura') && !source.include?('<coverage')
+          source_with_root = source + "\n<coverage/>"
+          original_initialize(source_with_root, context)
+          # Remove the dummy root element so simplecov-cobertura can add its own
+          delete_element('/coverage')
+        else
+          original_initialize(source, context)
+        end
+      end
+    end
+  end
 end
 
 $LOAD_PATH.unshift File.expand_path('../lib', __dir__)