diff --git a/CHANGELOG.md b/CHANGELOG.md
index 94418f0ef..bbc1e6b57 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 Change Log
 ==========================
 
+4.1.1 (unreleased)
+--------------------------
+
+
+
 4.1.0 (677)
 --------------------------
 
diff --git a/CotEditor.xcodeproj/project.pbxproj b/CotEditor.xcodeproj/project.pbxproj
index 71dd4df0e..66a898841 100644
--- a/CotEditor.xcodeproj/project.pbxproj
+++ b/CotEditor.xcodeproj/project.pbxproj
@@ -4260,10 +4260,10 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = "Accent Color";
-				CURRENT_PROJECT_VERSION = 477;
+				CURRENT_PROJECT_VERSION = 478;
 				ENABLE_HARDENED_RUNTIME = YES;
 				INFOPLIST_FILE = CotEditor/Info.plist;
-				MARKETING_VERSION = 4.1.0;
+				MARKETING_VERSION = "4.1.1-alpha";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.coteditor.$(PRODUCT_NAME)";
 				PRODUCT_NAME = CotEditor;
 			};
@@ -4275,10 +4275,10 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = "Accent Color";
-				CURRENT_PROJECT_VERSION = 477;
+				CURRENT_PROJECT_VERSION = 478;
 				ENABLE_HARDENED_RUNTIME = YES;
 				INFOPLIST_FILE = CotEditor/Info.plist;
-				MARKETING_VERSION = 4.1.0;
+				MARKETING_VERSION = "4.1.1-alpha";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.coteditor.$(PRODUCT_NAME)";
 				PRODUCT_NAME = CotEditor;
 			};
@@ -4314,10 +4314,10 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = "Accent Color";
-				CURRENT_PROJECT_VERSION = 477;
+				CURRENT_PROJECT_VERSION = 478;
 				ENABLE_HARDENED_RUNTIME = YES;
 				INFOPLIST_FILE = CotEditor/Info.plist;
-				MARKETING_VERSION = 4.1.0;
+				MARKETING_VERSION = "4.1.1-alpha";
 				OTHER_SWIFT_FLAGS = "$(inherited) -D SPARKLE";
 				PRODUCT_BUNDLE_IDENTIFIER = com.coteditor.CotEditor;
 				PRODUCT_NAME = CotEditor;
@@ -4330,10 +4330,10 @@
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = "Accent Color";
-				CURRENT_PROJECT_VERSION = 477;
+				CURRENT_PROJECT_VERSION = 478;
 				ENABLE_HARDENED_RUNTIME = YES;
 				INFOPLIST_FILE = CotEditor/Info.plist;
-				MARKETING_VERSION = 4.1.0;
+				MARKETING_VERSION = "4.1.1-alpha";
 				OTHER_SWIFT_FLAGS = "$(inherited) -D SPARKLE";
 				PRODUCT_BUNDLE_IDENTIFIER = com.coteditor.CotEditor;
 				PRODUCT_NAME = CotEditor;