diff --git a/RELEASE_NOTES.txt b/RELEASE_NOTES.txt
index dad0f16bb..ed66de857 100644
--- a/RELEASE_NOTES.txt
+++ b/RELEASE_NOTES.txt
@@ -1,6 +1,10 @@
 Changes since 4.2 BETA1
 -------------------
 
+* [HTTPCLIENT-1187] If a revalidation response is deemed too old CachingHttpClient fails to  
+  consume its content resulting in a connection leak.
+  Contributed by Oleg Kalnichevski <olegk at apache.org>
+
 * [HTTPCLIENT-1186] State of newly created connections in the connection pool is not always 
   correctly updated potentially allowing those connections to be leased to users with a different 
   security context. 
diff --git a/httpclient-cache/src/main/java/org/apache/http/impl/client/cache/CachingHttpClient.java b/httpclient-cache/src/main/java/org/apache/http/impl/client/cache/CachingHttpClient.java
index 99d32281d..409a89260 100644
--- a/httpclient-cache/src/main/java/org/apache/http/impl/client/cache/CachingHttpClient.java
+++ b/httpclient-cache/src/main/java/org/apache/http/impl/client/cache/CachingHttpClient.java
@@ -769,6 +769,7 @@ public class CachingHttpClient implements HttpClient {
         HttpCacheEntry matchedEntry = matchingVariant.getEntry();
 
         if (revalidationResponseIsTooOld(backendResponse, matchedEntry)) {
+            EntityUtils.consume(backendResponse.getEntity());
             return retryRequestUnconditionally(target, request, context,
                     matchedEntry);
         }
@@ -839,6 +840,7 @@ public class CachingHttpClient implements HttpClient {
         Date responseDate = getCurrentDate();
 
         if (revalidationResponseIsTooOld(backendResponse, cacheEntry)) {
+            EntityUtils.consume(backendResponse.getEntity());
             HttpRequest unconditional = conditionalRequestBuilder
                 .buildUnconditionalRequest(request, cacheEntry);
             requestDate = getCurrentDate();