diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 1f87bb8c8..7797fea91 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -53,7 +53,6 @@ jobs:
         k8s:
         - v1.24.1
         rabbitmq-image:
-        - rabbitmq:3.8.8-management
         - rabbitmq:3.9-management
         - rabbitmq:3.10-management
         - pivotalrabbitmq/rabbitmq:master-otp-min
diff --git a/README.md b/README.md
index ba17aac42..f119ae110 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ under `site/kubernetes`.
 
 ## Supported Versions
 
-The operator deploys RabbitMQ `3.10.2` by default, and supports versions from `3.8.8` upwards. The operator requires Kubernetes `1.19` or newer.
+The operator deploys RabbitMQ `3.10.2` by default, and supports versions from `3.9` upwards. The operator requires Kubernetes `1.19` or newer.
 
 ## Versioning