diff --git a/tests/cts/hostside/aidl/Android.bp b/tests/cts/hostside/aidl/Android.bp
index 8ec9284..31924f0 100644
--- a/tests/cts/hostside/aidl/Android.bp
+++ b/tests/cts/hostside/aidl/Android.bp
@@ -20,7 +20,7 @@
 java_test_helper_library {
     name: "CtsHostsideNetworkTestsAidl",
     sdk_version: "current",
-    min_sdk_version: "31",
+    min_sdk_version: "30",
     srcs: [
         "com/android/cts/net/hostside/*.aidl",
         "com/android/cts/net/hostside/*.java",
diff --git a/tests/cts/hostside/app/Android.bp b/tests/cts/hostside/app/Android.bp
index 798cf98..40cabc4 100644
--- a/tests/cts/hostside/app/Android.bp
+++ b/tests/cts/hostside/app/Android.bp
@@ -44,7 +44,7 @@
         "general-tests",
         "sts",
     ],
-    min_sdk_version: "31",
+    min_sdk_version: "30",
 }
 
 android_test_helper_app {
diff --git a/tests/cts/hostside/app2/Android.bp b/tests/cts/hostside/app2/Android.bp
index 3dde3ff..cb55c7b 100644
--- a/tests/cts/hostside/app2/Android.bp
+++ b/tests/cts/hostside/app2/Android.bp
@@ -36,5 +36,5 @@
         "sts",
     ],
     sdk_version: "test_current",
-    min_sdk_version: "31",
+    min_sdk_version: "30",
 }
diff --git a/tests/cts/hostside/networkslicingtestapp/Android.bp b/tests/cts/hostside/networkslicingtestapp/Android.bp
index 333195c..79ad2e2 100644
--- a/tests/cts/hostside/networkslicingtestapp/Android.bp
+++ b/tests/cts/hostside/networkslicingtestapp/Android.bp
@@ -35,7 +35,7 @@
         "general-tests",
         "sts",
     ],
-    min_sdk_version: "31",
+    min_sdk_version: "30",
 }
 
 android_test_helper_app {