diff --git a/.ci.yaml b/.ci.yaml
index 25267713e2..ecb51a34ba 100644
--- a/.ci.yaml
+++ b/.ci.yaml
@@ -86,7 +86,7 @@ platform_properties:
         ]
       os: Mac-12
       cpu: x86
-      device_os: iOS-15
+      device_os: iOS-15.1
       xcode: 13a233
   mac_arm64_ios:
     properties:
@@ -98,7 +98,7 @@ platform_properties:
         ]
       os: Mac-12
       cpu: arm64
-      device_os: iOS-15
+      device_os: iOS-15.1
       xcode: 13a233
   windows:
     properties: