diff --git a/.buildkite/pipeline.yml b/.buildkite/pipeline.yml
index d88fbea40..0b817415b 100644
--- a/.buildkite/pipeline.yml
+++ b/.buildkite/pipeline.yml
@@ -5,7 +5,7 @@ steps:
     env:
       RUBY_VERSION: "{{ matrix.ruby }}"
       TEST_SUITE: "{{ matrix.suite }}"
-      STACK_VERSION: 8.19.3-SNAPSHOT
+      STACK_VERSION: 8.19.4-SNAPSHOT
       TRANSPORT_VERSION: "{{ matrix.transport }}"
       RUBY_SOURCE: "{{ matrix.ruby_source }}"
       QUIET: false
@@ -67,7 +67,7 @@ steps:
       provider: "gcp"
     env:
       RUBY_VERSION: "3.4"
-      STACK_VERSION: 8.19.3-SNAPSHOT
+      STACK_VERSION: 8.19.4-SNAPSHOT
       ES_YAML_TESTS_BRANCH: "8.19"
       TRANSPORT_VERSION: "8.3"
       RUBY_SOURCE: "ruby"
diff --git a/.github/workflows/8.19.yml b/.github/workflows/8.19.yml
index 4c0d47fca..fd38b02ba 100644
--- a/.github/workflows/8.19.yml
+++ b/.github/workflows/8.19.yml
@@ -26,7 +26,7 @@ jobs:
         sudo sysctl -w vm.max_map_count=262144
     - uses: elastic/elastic-github-actions/elasticsearch@master
       with:
-        stack-version: 8.19.3-SNAPSHOT
+        stack-version: 8.19.4-SNAPSHOT
         security-enabled: false
     - uses: ruby/setup-ruby@v1
       with:
@@ -40,4 +40,4 @@ jobs:
     - name: elasticsearch
       run: cd elasticsearch && bundle exec rake test:all
     - name: elasticsearch-api
-      run: rake es:download_artifacts[8.19.3-SNAPSHOT] && cd elasticsearch-api && bundle exec rake test:spec test:platinum:unit
+      run: rake es:download_artifacts[8.19.4-SNAPSHOT] && cd elasticsearch-api && bundle exec rake test:spec test:platinum:unit
diff --git a/.github/workflows/otel.yml b/.github/workflows/otel.yml
index 2f05c85e5..ef54fdec9 100644
--- a/.github/workflows/otel.yml
+++ b/.github/workflows/otel.yml
@@ -28,7 +28,7 @@ jobs:
           sudo sysctl -w vm.max_map_count=262144
       - uses: elastic/elastic-github-actions/elasticsearch@master
         with:
-          stack-version: 8.19.3-SNAPSHOT
+          stack-version: 8.19.4-SNAPSHOT
           security-enabled: false
       - uses: ruby/setup-ruby@v1
         with:
@@ -42,4 +42,4 @@ jobs:
       - name: elasticsearch
         run: cd elasticsearch && bundle exec rake test:all
       - name: elasticsearch-api
-        run: rake es:download_artifacts[8.19.3-SNAPSHOT] && cd elasticsearch-api && bundle exec rake test:spec test:platinum:unit
+        run: rake es:download_artifacts[8.19.4-SNAPSHOT] && cd elasticsearch-api && bundle exec rake test:spec test:platinum:unit