diff --git a/.buildkite/pipelines/intake.yml b/.buildkite/pipelines/intake.yml
index d1c075dd4a68f..d1600af68e4a0 100644
--- a/.buildkite/pipelines/intake.yml
+++ b/.buildkite/pipelines/intake.yml
@@ -65,7 +65,7 @@ steps:
         timeout_in_minutes: 300
         matrix:
           setup:
-            BWC_VERSION: ["8.18.9", "8.19.6", "9.1.6", "9.2.0", "9.3.0"]
+            BWC_VERSION: ["9.1.6", "9.2.0", "9.3.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404
diff --git a/.buildkite/pipelines/periodic-java-ea.yml b/.buildkite/pipelines/periodic-java-ea.yml
index 130481705ba06..2ea6f0dc35741 100644
--- a/.buildkite/pipelines/periodic-java-ea.yml
+++ b/.buildkite/pipelines/periodic-java-ea.yml
@@ -538,7 +538,7 @@ steps:
         timeout_in_minutes: 300
         matrix:
           setup:
-            BWC_VERSION: ["8.18.9", "8.19.6", "9.1.6", "9.2.0", "9.3.0"]
+            BWC_VERSION: ["9.1.6", "9.2.0", "9.3.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404
diff --git a/.buildkite/pipelines/periodic.yml b/.buildkite/pipelines/periodic.yml
index 9fb3a732a3f78..cc49762812e76 100644
--- a/.buildkite/pipelines/periodic.yml
+++ b/.buildkite/pipelines/periodic.yml
@@ -525,7 +525,7 @@ steps:
           setup:
             ES_RUNTIME_JAVA:
               - openjdk21
-            BWC_VERSION: ["8.18.9", "8.19.6", "9.1.6", "9.2.0", "9.3.0"]
+            BWC_VERSION: ["9.1.6", "9.2.0", "9.3.0"]
         agents:
           provider: gcp
           image: family/elasticsearch-ubuntu-2404
diff --git a/.ci/snapshotBwcVersions b/.ci/snapshotBwcVersions
index 25f18babdd57a..71e4bfae74a33 100644
--- a/.ci/snapshotBwcVersions
+++ b/.ci/snapshotBwcVersions
@@ -1,6 +1,4 @@
 BWC_VERSION:
-  - "8.18.9"
-  - "8.19.6"
   - "9.1.6"
   - "9.2.0"
   - "9.3.0"