diff --git a/Nostash.xcodeproj/project.pbxproj b/Nostash.xcodeproj/project.pbxproj
index edd1d54..f55f7bd 100644
--- a/Nostash.xcodeproj/project.pbxproj
+++ b/Nostash.xcodeproj/project.pbxproj
@@ -808,7 +808,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 8;
+				CURRENT_PROJECT_VERSION = 9;
 				DEVELOPMENT_TEAM = S99A5B637C;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = "iOS (Extension)/Info.plist";
@@ -840,7 +840,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 8;
+				CURRENT_PROJECT_VERSION = 9;
 				DEVELOPMENT_TEAM = S99A5B637C;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = "iOS (Extension)/Info.plist";
@@ -875,7 +875,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 8;
+				CURRENT_PROJECT_VERSION = 9;
 				DEVELOPMENT_TEAM = S99A5B637C;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = "iOS (App)/Info.plist";
@@ -916,7 +916,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 8;
+				CURRENT_PROJECT_VERSION = 9;
 				DEVELOPMENT_TEAM = S99A5B637C;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = "iOS (App)/Info.plist";
@@ -957,7 +957,7 @@
 			buildSettings = {
 				CODE_SIGN_ENTITLEMENTS = "macOS (Extension)/nostash.entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 8;
+				CURRENT_PROJECT_VERSION = 9;
 				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = S99A5B637C;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -971,7 +971,7 @@
 					"@executable_path/../Frameworks",
 					"@executable_path/../../../../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 13.0;
+				MACOSX_DEPLOYMENT_TARGET = 15.0;
 				MARKETING_VERSION = 2.1.0;
 				OTHER_LDFLAGS = (
 					"-framework",
@@ -991,7 +991,7 @@
 			buildSettings = {
 				CODE_SIGN_ENTITLEMENTS = "macOS (Extension)/nostash.entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 8;
+				CURRENT_PROJECT_VERSION = 9;
 				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = S99A5B637C;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -1005,7 +1005,7 @@
 					"@executable_path/../Frameworks",
 					"@executable_path/../../../../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 13.0;
+				MACOSX_DEPLOYMENT_TARGET = 15.0;
 				MARKETING_VERSION = 2.1.0;
 				OTHER_LDFLAGS = (
 					"-framework",
@@ -1027,7 +1027,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_ENTITLEMENTS = "macOS (App)/nostash.entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 8;
+				CURRENT_PROJECT_VERSION = 9;
 				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = S99A5B637C;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -1040,7 +1040,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 13.0;
+				MACOSX_DEPLOYMENT_TARGET = 15.0;
 				MARKETING_VERSION = 2.1.0;
 				OTHER_LDFLAGS = (
 					"-framework",
@@ -1063,7 +1063,7 @@
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
 				CODE_SIGN_ENTITLEMENTS = "macOS (App)/nostash.entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 8;
+				CURRENT_PROJECT_VERSION = 9;
 				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_TEAM = S99A5B637C;
 				ENABLE_HARDENED_RUNTIME = YES;
@@ -1076,7 +1076,7 @@
 					"$(inherited)",
 					"@executable_path/../Frameworks",
 				);
-				MACOSX_DEPLOYMENT_TARGET = 13.0;
+				MACOSX_DEPLOYMENT_TARGET = 15.0;
 				MARKETING_VERSION = 2.1.0;
 				OTHER_LDFLAGS = (
 					"-framework",
diff --git a/README.md b/README.md
index 484113f..a621c92 100644
--- a/README.md
+++ b/README.md
@@ -13,8 +13,8 @@ Nostash is a [NIP-07][nip07] compatible Safari extension for signing [Nostr][Nos
 
 - iOS 18+
 - iPadOS 18+
-- macOS 13+
-- Safari browser
+- macOS 15+
+- Safari 18+
 
 ## Installation
 
diff --git a/Shared (Extension)/Resources/manifest.json b/Shared (Extension)/Resources/manifest.json
index b000e18..4b84e3a 100644
--- a/Shared (Extension)/Resources/manifest.json	
+++ b/Shared (Extension)/Resources/manifest.json	
@@ -58,7 +58,7 @@
     },
     "browser_specific_settings": {
         "safari": {
-            "strict_min_version": "15.4"
+            "strict_min_version": "18.0"
         }
     }
 }