diff --git a/docs/reference/release-notes/7.0.0-alpha1.asciidoc b/docs/reference/release-notes/7.0.0-alpha1.asciidoc
index 128a9b7dd716b..618d9e70dcb30 100644
--- a/docs/reference/release-notes/7.0.0-alpha1.asciidoc
+++ b/docs/reference/release-notes/7.0.0-alpha1.asciidoc
@@ -8,4 +8,7 @@ The changes listed below have been released for the first time in Elasticsearch
 === Breaking changes
 
 Core::
-* Tribe node has been removed in favor of Cross-Cluster-Search
\ No newline at end of file
+* Tribe node has been removed in favor of Cross-Cluster-Search
+
+Rest API::
+* The Clear Cache API only supports `POST` as HTTP method
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/api/indices.clear_cache.json b/rest-api-spec/src/main/resources/rest-api-spec/api/indices.clear_cache.json
index 9a0f7be1d65ae..7e62371dd674d 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/api/indices.clear_cache.json
+++ b/rest-api-spec/src/main/resources/rest-api-spec/api/indices.clear_cache.json
@@ -1,7 +1,7 @@
 {
   "indices.clear_cache": {
     "documentation": "http://www.elastic.co/guide/en/elasticsearch/reference/master/indices-clearcache.html",
-    "methods": ["POST", "GET"],
+    "methods": ["POST"],
     "url": {
       "path": "/_cache/clear",
       "paths": ["/_cache/clear", "/{index}/_cache/clear"],
diff --git a/server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestClearIndicesCacheAction.java b/server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestClearIndicesCacheAction.java
index 266c1cb68f03f..38b9d987d04e5 100644
--- a/server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestClearIndicesCacheAction.java
+++ b/server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestClearIndicesCacheAction.java
@@ -31,7 +31,6 @@
 
 import java.io.IOException;
 
-import static org.elasticsearch.rest.RestRequest.Method.GET;
 import static org.elasticsearch.rest.RestRequest.Method.POST;
 
 public class RestClearIndicesCacheAction extends BaseRestHandler {
@@ -40,9 +39,6 @@ public RestClearIndicesCacheAction(Settings settings, RestController controller)
         super(settings);
         controller.registerHandler(POST, "/_cache/clear", this);
         controller.registerHandler(POST, "/{index}/_cache/clear", this);
-
-        controller.registerHandler(GET, "/_cache/clear", this);
-        controller.registerHandler(GET, "/{index}/_cache/clear", this);
     }
 
     @Override