diff --git a/releasenotes/RELEASE_NOTES_1.17.7-zephcore.md b/releasenotes/RELEASE_NOTES_1.17.7-zephcore.md
index f151438..2027672 100644
--- a/releasenotes/RELEASE_NOTES_1.17.7-zephcore.md
+++ b/releasenotes/RELEASE_NOTES_1.17.7-zephcore.md
@@ -287,7 +287,7 @@ matches the SoftDevice version of your bootloader.
   too, like the LED and advert shortcuts.
 - **New board**: Seeed LR2021 LoRa Plus EVK with a XIAO nRF54LM20A. Build it from source; there is no
   published firmware for it yet.
-- **Zephyr** updated to `74b7173e9c9`. One change in it would have been visible and is handled:
+- **Zephyr** updated to `11808e9ea8a`. One change in it would have been visible and is handled:
   e-paper displays would have drawn white text on a black page. The RAK4631's LEDs are now declared
   by ZephCore, since Zephyr's board file no longer describes them; nothing changes on the board.
   It also brings a fix for boards on WiFi: the starting sequence number of a TCP connection (the
diff --git a/zephcore/west.yml b/zephcore/west.yml
index 443b0f7..6a676ca 100644
--- a/zephcore/west.yml
+++ b/zephcore/west.yml
@@ -6,7 +6,7 @@ manifest:
   projects:
     - name: zephyr
       remote: zephyrproject-rtos
-      revision: 74b7173e9c929cf8eed570fb3df099c5514720c0
+      revision: 11808e9ea8abc132661fe18a21236e053ab04b93
       import: true
 
   self: