diff --git a/changelog/unreleased/pr-14063.toml b/changelog/unreleased/pr-14063.toml
new file mode 100644
index 000000000000..fad2602c996c
--- /dev/null
+++ b/changelog/unreleased/pr-14063.toml
@@ -0,0 +1,4 @@
+type = "fixed"
+message = "Fix connectivity check when Elasticsearch/OpenSearch is not available."
+
+pulls = ["14063"]
diff --git a/graylog-storage-elasticsearch7/src/main/java/org/graylog/storage/elasticsearch7/ClusterAdapterES7.java b/graylog-storage-elasticsearch7/src/main/java/org/graylog/storage/elasticsearch7/ClusterAdapterES7.java
index c114206e70f0..ff9c68762c88 100644
--- a/graylog-storage-elasticsearch7/src/main/java/org/graylog/storage/elasticsearch7/ClusterAdapterES7.java
+++ b/graylog-storage-elasticsearch7/src/main/java/org/graylog/storage/elasticsearch7/ClusterAdapterES7.java
@@ -168,7 +168,7 @@ public boolean isConnected() {
         try {
             final ClusterHealthResponse result = client.execute((c, requestOptions) -> c.cluster().health(request, requestOptions));
             return result.getNumberOfDataNodes() > 0;
-        } catch (ElasticsearchException e) {
+        } catch (org.graylog.shaded.elasticsearch7.org.elasticsearch.ElasticsearchException e) {
             if (LOG.isDebugEnabled()) {
                 LOG.error(e.getMessage(), e);
             }
diff --git a/graylog-storage-opensearch2/src/main/java/org/graylog/storage/opensearch2/ClusterAdapterOS2.java b/graylog-storage-opensearch2/src/main/java/org/graylog/storage/opensearch2/ClusterAdapterOS2.java
index 42a16d4b9db0..d7eeade4de86 100644
--- a/graylog-storage-opensearch2/src/main/java/org/graylog/storage/opensearch2/ClusterAdapterOS2.java
+++ b/graylog-storage-opensearch2/src/main/java/org/graylog/storage/opensearch2/ClusterAdapterOS2.java
@@ -169,7 +169,7 @@ public boolean isConnected() {
         try {
             final ClusterHealthResponse result = client.execute((c, requestOptions) -> c.cluster().health(request, requestOptions));
             return result.getNumberOfDataNodes() > 0;
-        } catch (ElasticsearchException e) {
+        } catch (OpenSearchException e) {
             if (LOG.isDebugEnabled()) {
                 LOG.error(e.getMessage(), e);
             }