diff --git a/FirebaseVertexAI/Tests/TestApp/VertexAITestApp.xcodeproj/project.pbxproj b/FirebaseVertexAI/Tests/TestApp/VertexAITestApp.xcodeproj/project.pbxproj
index 145a13b2f90..3638b5b13c8 100644
--- a/FirebaseVertexAI/Tests/TestApp/VertexAITestApp.xcodeproj/project.pbxproj
+++ b/FirebaseVertexAI/Tests/TestApp/VertexAITestApp.xcodeproj/project.pbxproj
@@ -399,10 +399,10 @@
 				"INFOPLIST_KEY_UIStatusBarStyle[sdk=iphonesimulator*]" = UIStatusBarStyleDefault;
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
-				IPHONEOS_DEPLOYMENT_TARGET = 17.2;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = "@executable_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "@executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 14.2;
+				MACOSX_DEPLOYMENT_TARGET = 12.0;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.google.firebase.VertexAITestApp;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -435,10 +435,10 @@
 				"INFOPLIST_KEY_UIStatusBarStyle[sdk=iphonesimulator*]" = UIStatusBarStyleDefault;
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPad = "UIInterfaceOrientationPortrait UIInterfaceOrientationPortraitUpsideDown UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
 				INFOPLIST_KEY_UISupportedInterfaceOrientations_iPhone = "UIInterfaceOrientationPortrait UIInterfaceOrientationLandscapeLeft UIInterfaceOrientationLandscapeRight";
-				IPHONEOS_DEPLOYMENT_TARGET = 17.2;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
 				LD_RUNPATH_SEARCH_PATHS = "@executable_path/Frameworks";
 				"LD_RUNPATH_SEARCH_PATHS[sdk=macosx*]" = "@executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 14.2;
+				MACOSX_DEPLOYMENT_TARGET = 12.0;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.google.firebase.VertexAITestApp;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -458,8 +458,8 @@
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 17.2;
-				MACOSX_DEPLOYMENT_TARGET = 14.2;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
+				MACOSX_DEPLOYMENT_TARGET = 12.0;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.google.firebase.VertexAITestAppTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -480,8 +480,8 @@
 				CODE_SIGN_STYLE = Automatic;
 				CURRENT_PROJECT_VERSION = 1;
 				GENERATE_INFOPLIST_FILE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 17.2;
-				MACOSX_DEPLOYMENT_TARGET = 14.2;
+				IPHONEOS_DEPLOYMENT_TARGET = 15.0;
+				MACOSX_DEPLOYMENT_TARGET = 12.0;
 				MARKETING_VERSION = 1.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.google.firebase.VertexAITestAppTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";