diff --git a/linphone.xcodeproj/project.pbxproj b/linphone.xcodeproj/project.pbxproj
index d5a94982e..27fe08fbd 100755
--- a/linphone.xcodeproj/project.pbxproj
+++ b/linphone.xcodeproj/project.pbxproj
@@ -1569,7 +1569,7 @@
 					submodules/externals/speex/include,
 				);
 				INFOPLIST_FILE = "linphone-Info.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 4.0;
 				LIBRARY_SEARCH_PATHS = (
 					"$(BUILT_PRODUCTS_DIR)",
 					"\"$(SRCROOT)/liblinphone-sdk/apple-darwin/lib/mediastreamer/plugins\"",
@@ -1637,7 +1637,7 @@
 					submodules/externals/speex/include,
 				);
 				INFOPLIST_FILE = "linphone-Info.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 4.0;
 				LIBRARY_SEARCH_PATHS = (
 					"$(BUILT_PRODUCTS_DIR)",
 					"\"$(SRCROOT)/liblinphone-sdk/apple-darwin/lib/mediastreamer/plugins\"",
@@ -1915,7 +1915,7 @@
 					submodules/externals/speex/include,
 				);
 				INFOPLIST_FILE = "linphone-Info.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 4.0;
 				LIBRARY_SEARCH_PATHS = (
 					"$(BUILT_PRODUCTS_DIR)",
 					"\"$(SRCROOT)/liblinphone-sdk/apple-darwin/lib/mediastreamer/plugins\"",
@@ -1983,7 +1983,7 @@
 					submodules/externals/speex/include,
 				);
 				INFOPLIST_FILE = "linphone-Info.plist";
-				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 4.0;
 				LIBRARY_SEARCH_PATHS = (
 					"$(BUILT_PRODUCTS_DIR)",
 					"\"$(SRCROOT)/liblinphone-sdk/apple-darwin/lib/mediastreamer/plugins\"",