diff --git a/openEulerROS.repo b/openEulerROS.repo
index 42c10a9..7e5e6ea 100644
--- a/openEulerROS.repo
+++ b/openEulerROS.repo
@@ -1,12 +1,12 @@
 [openEulerROS-humble]
 name=openEulerROS-humble
-baseurl=https://repo.openeuler.org/openEuler-22.03-LTS-SP2/EPOL/multi_version/ROS/humble/$basearch
+baseurl=https://repo.openeuler.org/openEuler-22.03-LTS-SP4/EPOL/multi_version/ROS/humble/$basearch
 enabled=1
 gpgcheck=0
 
 [openEulerROS-humble-source]
 name=openEulerROS-humble-source
-baseurl=https://repo.openeuler.org/openEuler-22.03-LTS-SP2/EPOL/multi_version/ROS/humble/source
+baseurl=https://repo.openeuler.org/openEuler-22.03-LTS-SP4/EPOL/multi_version/ROS/humble/source
 enabled=1
 gpgcheck=0