diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24763155..3750f3a0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@
 
 - Use internal secrets for secret- and jwt-keys ([#686]).
 - Update uvicorn version and revert to default number of API workers ([#690]).
+- Deprecate airflow `2.9.3` ([#691]).
 
 ### Fixed
 
@@ -33,6 +34,7 @@
 [#686]: https://github.com/stackabletech/airflow-operator/pull/686
 [#687]: https://github.com/stackabletech/airflow-operator/pull/687
 [#690]: https://github.com/stackabletech/airflow-operator/pull/690
+[#691]: https://github.com/stackabletech/airflow-operator/pull/691
 
 ## [25.7.0] - 2025-07-23
 
diff --git a/docs/modules/airflow/partials/supported-versions.adoc b/docs/modules/airflow/partials/supported-versions.adoc
index f8f684da..99d4fd03 100644
--- a/docs/modules/airflow/partials/supported-versions.adoc
+++ b/docs/modules/airflow/partials/supported-versions.adoc
@@ -5,4 +5,4 @@
 - 3.0.1 (experimental)
 - 2.10.5
 - 2.10.4 (deprecated)
-- 2.9.3 (LTS)
+- 2.9.3 (deprecated)
diff --git a/tests/test-definition.yaml b/tests/test-definition.yaml
index 706f10b6..a4010651 100644
--- a/tests/test-definition.yaml
+++ b/tests/test-definition.yaml
@@ -7,17 +7,16 @@
 dimensions:
   - name: airflow
     values:
-      - 2.9.3
       - 2.10.4
       - 2.10.5
       - 3.0.1
       # To use a custom image, add a comma and the full name after the product version
-      # - 2.9.3,oci.stackable.tech/sandbox/airflow:2.9.3-stackable0.0.0-dev
+      # - 3.0.1,oci.stackable.tech/sandbox/airflow:3.0.1-stackable0.0.0-dev
   - name: airflow-latest
     values:
       - 3.0.1
       # To use a custom image, add a comma and the full name after the product version
-      # - 2.9.3,oci.stackable.tech/sandbox/airflow:2.9.3-stackable0.0.0-dev
+      # - 3.0.1,oci.stackable.tech/sandbox/airflow:3.0.1-stackable0.0.0-dev
   - name: opa-latest
     values:
       - 1.4.2