diff --git a/components/esp8266/lib/VERSION b/components/esp8266/lib/VERSION
index dbd6bf8a..7807e695 100644
--- a/components/esp8266/lib/VERSION
+++ b/components/esp8266/lib/VERSION
@@ -1,5 +1,5 @@
 gwen:
-    core:       27927af
+    core:       9fa12cc
     net80211:   aace315
     pp:         8012b8d
     wpa:        27927af
diff --git a/components/esp8266/lib/libcore.a b/components/esp8266/lib/libcore.a
old mode 100644
new mode 100755
index 350865e9..17762fd6
Binary files a/components/esp8266/lib/libcore.a and b/components/esp8266/lib/libcore.a differ
diff --git a/components/esp8266/lib/libcore_dbg.a b/components/esp8266/lib/libcore_dbg.a
old mode 100644
new mode 100755
index 146b8fef..cdf36d34
Binary files a/components/esp8266/lib/libcore_dbg.a and b/components/esp8266/lib/libcore_dbg.a differ