diff --git a/lib/index.js b/lib/index.js
index 97466e4..30d30b1 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -30,8 +30,11 @@ function cache (config = {}) {
 
     const uuid = key(req)
 
-    // clear cache if method different from GET
-    if (req.method.toLowerCase() !== 'get') {
+    // clear cache if method different from GET.
+    // We should exclude HEAD
+    const method = req.method.toLowerCase()
+
+    if (method !== 'get' || method !== 'head') {
       config.store.removeItem(uuid)
       return null
     }