diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b2840f86..7c564c2bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,14 @@ Group changes to describe their impact on the project, as follows:
 	Fixed for any bug fixes.
 	Security to invite users to upgrade in case of vulnerabilities.
 	
+## [5.1.1] - 2023-04-09
+### Changed
+- Update linphone SDK to 5.2.99
+
+### Fixed
+- Fix bug that could prevent the creation or logging in of a linphone account using a phone number
+- Fix UI bug on dark mode when using multiple accounts simultaneously
+	
 ## [5.1.0] - 2023-21-08
 ### Added
 - In contacts and chat conversations view, show short term presence for contacts whom publish it + added setting to disable it (enabled by default for sip.linphone.org accounts)
diff --git a/linphone.xcodeproj/project.pbxproj b/linphone.xcodeproj/project.pbxproj
index fdf4b6b63..b62e620d5 100644
--- a/linphone.xcodeproj/project.pbxproj
+++ b/linphone.xcodeproj/project.pbxproj
@@ -5856,14 +5856,14 @@
 					"$(inherited)",
 				);
 				LINK_WITH_STANDARD_LIBRARIES = YES;
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				OTHER_CFLAGS = (
 					"-DBCTBX_LOG_DOMAIN=\\\"ios\\\"",
 					"-DCHECK_VERSION_UPDATE=FALSE",
 					"-DENABLE_QRCODE=TRUE",
 					"-DENABLE_SMS_INVITE=TRUE",
 					"$(inherited)",
-					"-DLINPHONE_SDK_VERSION=\\\"5.2.76\\\"",
+					"-DLINPHONE_SDK_VERSION=\\\"5.2.99\\\"",
 				);
 				OTHER_SWIFT_FLAGS = "$(inherited)";
 				PRODUCT_BUNDLE_IDENTIFIER = org.linphone.phone;
@@ -5982,14 +5982,14 @@
 					"$(inherited)",
 				);
 				LINK_WITH_STANDARD_LIBRARIES = YES;
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				OTHER_CFLAGS = (
 					"-DBCTBX_LOG_DOMAIN=\\\"ios\\\"",
 					"-DCHECK_VERSION_UPDATE=FALSE",
 					"-DENABLE_QRCODE=TRUE",
 					"-DENABLE_SMS_INVITE=TRUE",
 					"$(inherited)",
-					"-DLINPHONE_SDK_VERSION=\\\"5.2.76\\\"",
+					"-DLINPHONE_SDK_VERSION=\\\"5.2.99\\\"",
 				);
 				OTHER_SWIFT_FLAGS = "$(inherited)";
 				PRODUCT_BUNDLE_IDENTIFIER = org.linphone.phone;
@@ -6107,14 +6107,14 @@
 					"$(inherited)",
 				);
 				LINK_WITH_STANDARD_LIBRARIES = YES;
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				OTHER_CFLAGS = (
 					"-DBCTBX_LOG_DOMAIN=\\\"ios\\\"",
 					"-DCHECK_VERSION_UPDATE=FALSE",
 					"-DENABLE_QRCODE=TRUE",
 					"-DENABLE_SMS_INVITE=TRUE",
 					"$(inherited)",
-					"-DLINPHONE_SDK_VERSION=\\\"5.2.76\\\"",
+					"-DLINPHONE_SDK_VERSION=\\\"5.2.99\\\"",
 				);
 				OTHER_SWIFT_FLAGS = "$(inherited)";
 				PRODUCT_BUNDLE_IDENTIFIER = org.linphone.phone;
@@ -6231,14 +6231,14 @@
 					"$(inherited)",
 				);
 				LINK_WITH_STANDARD_LIBRARIES = YES;
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				OTHER_CFLAGS = (
 					"-DBCTBX_LOG_DOMAIN=\\\"ios\\\"",
 					"-DCHECK_VERSION_UPDATE=FALSE",
 					"-DENABLE_QRCODE=TRUE",
 					"-DENABLE_SMS_INVITE=TRUE",
 					"$(inherited)",
-					"-DLINPHONE_SDK_VERSION=\\\"5.2.76\\\"",
+					"-DLINPHONE_SDK_VERSION=\\\"5.2.99\\\"",
 				);
 				OTHER_SWIFT_FLAGS = "$(inherited)";
 				PRODUCT_BUNDLE_IDENTIFIER = org.linphone.phone;
@@ -6291,7 +6291,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				INFOPLIST_FILE = linphoneExtension/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				PRODUCT_BUNDLE_IDENTIFIER = org.linphone.phone.linphoneExtension;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -6333,7 +6333,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				INFOPLIST_FILE = linphoneExtension/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = org.linphone.phone.linphoneExtension;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -6375,7 +6375,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				INFOPLIST_FILE = linphoneExtension/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = org.linphone.phone.linphoneExtension;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -6418,7 +6418,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				INFOPLIST_FILE = linphoneExtension/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				PRODUCT_BUNDLE_IDENTIFIER = org.linphone.phone.linphoneExtension;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -6518,7 +6518,7 @@
 				INFOPLIST_FILE = "$(SRCROOT)/msgNotificationService/Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -6570,7 +6570,7 @@
 				INFOPLIST_FILE = "$(SRCROOT)/msgNotificationService/Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -6622,7 +6622,7 @@
 				INFOPLIST_FILE = "$(SRCROOT)/msgNotificationService/Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -6674,7 +6674,7 @@
 				INFOPLIST_FILE = "$(SRCROOT)/msgNotificationService/Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -6730,7 +6730,7 @@
 				INFOPLIST_FILE = msgNotificationContent/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -6782,7 +6782,7 @@
 				INFOPLIST_FILE = msgNotificationContent/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -6834,7 +6834,7 @@
 				INFOPLIST_FILE = msgNotificationContent/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited)";
@@ -6886,7 +6886,7 @@
 				INFOPLIST_FILE = msgNotificationContent/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 11.2;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @executable_path/../../Frameworks";
-				MARKETING_VERSION = 5.1.0;
+				MARKETING_VERSION = 5.1.1;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				MTL_FAST_MATH = YES;
 				OTHER_SWIFT_FLAGS = "$(inherited)";