diff --git a/Configurations/ConfigCommon.xcconfig b/Configurations/ConfigCommon.xcconfig
index e79e27484..d3d61fd7c 100644
--- a/Configurations/ConfigCommon.xcconfig
+++ b/Configurations/ConfigCommon.xcconfig
@@ -26,7 +26,7 @@ ENABLE_STRICT_OBJC_MSGSEND = YES
 GCC_SYMBOLS_PRIVATE_EXTERN = YES
 GCC_INLINES_ARE_PRIVATE_EXTERN = YES
 ARCHS = $(ARCHS_STANDARD)
-MACOSX_DEPLOYMENT_TARGET = 10.9
+MACOSX_DEPLOYMENT_TARGET = 10.13
 PRODUCT_NAME = ${TARGET_NAME}
 PRODUCT_BUNDLE_IDENTIFIER = org.sparkle-project.Sparkle.${PRODUCT_NAME:rfc1034identifier}
 
diff --git a/Configurations/ConfigGenerateAppcast.xcconfig b/Configurations/ConfigGenerateAppcast.xcconfig
index cdfa92470..64bebc7d9 100644
--- a/Configurations/ConfigGenerateAppcast.xcconfig
+++ b/Configurations/ConfigGenerateAppcast.xcconfig
@@ -3,5 +3,5 @@
 #include "ConfigSwift.xcconfig"
 
 SWIFT_OBJC_BRIDGING_HEADER = generate_appcast/Appcast-Bridging-Header.h
-MACOSX_DEPLOYMENT_TARGET = 10.11
+MACOSX_DEPLOYMENT_TARGET = 10.13
 PRODUCT_NAME = generate_appcast
diff --git a/Configurations/ConfigGenerateKeys.xcconfig b/Configurations/ConfigGenerateKeys.xcconfig
index d62c5b95c..8d1d6228e 100644
--- a/Configurations/ConfigGenerateKeys.xcconfig
+++ b/Configurations/ConfigGenerateKeys.xcconfig
@@ -3,5 +3,5 @@
 #include "ConfigSwift.xcconfig"
 
 SWIFT_OBJC_BRIDGING_HEADER = generate_keys/Bridging-Header.h
-MACOSX_DEPLOYMENT_TARGET = 10.11
+MACOSX_DEPLOYMENT_TARGET = 10.13
 PRODUCT_NAME = generate_keys
diff --git a/Configurations/ConfigUITest.xcconfig b/Configurations/ConfigUITest.xcconfig
index badc3e139..30d9c2330 100644
--- a/Configurations/ConfigUITest.xcconfig
+++ b/Configurations/ConfigUITest.xcconfig
@@ -4,7 +4,7 @@
 
 INFOPLIST_FILE = UITests/UITests-Info.plist
 WRAPPER_EXTENSION = xctest
-MACOSX_DEPLOYMENT_TARGET = 10.11
+MACOSX_DEPLOYMENT_TARGET = 10.13
 
 FRAMEWORK_SEARCH_PATHS = $(inherited) $(DEVELOPER_FRAMEWORKS_DIR)
 LD_RUNPATH_SEARCH_PATHS = @loader_path/../Frameworks
diff --git a/Configurations/ConfigUnitTest.xcconfig b/Configurations/ConfigUnitTest.xcconfig
index f9e7cea30..667cfe77f 100644
--- a/Configurations/ConfigUnitTest.xcconfig
+++ b/Configurations/ConfigUnitTest.xcconfig
@@ -9,6 +9,6 @@ GCC_SYMBOLS_PRIVATE_EXTERN = NO
 WARNING_CFLAGS = $(inherited) -Wno-variadic-macros -Wno-gnu-zero-variadic-macro-arguments
 FRAMEWORK_SEARCH_PATHS = $(inherited) $(DEVELOPER_FRAMEWORKS_DIR)
 LD_RUNPATH_SEARCH_PATHS = @loader_path/../Frameworks
-MACOSX_DEPLOYMENT_TARGET = 10.9
+MACOSX_DEPLOYMENT_TARGET = 10.13
 CLANG_ENABLE_MODULES = YES
 SWIFT_OBJC_BRIDGING_HEADER = Tests/Sparkle Unit Tests-Bridging-Header.h