diff --git a/Mac/Base.lproj/Main.storyboard b/Mac/Base.lproj/Main.storyboard
index ba4a9a4de..a077b7153 100644
--- a/Mac/Base.lproj/Main.storyboard
+++ b/Mac/Base.lproj/Main.storyboard
@@ -1,8 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="14868" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES">
+<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="15504" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES">
     <dependencies>
-        <deployment identifier="macosx"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14868"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="15504"/>
     </dependencies>
     <scenes>
         <!--Application-->
@@ -606,7 +605,6 @@
                     <connections>
                         <outlet property="checkForUpdatesMenuItem" destination="1nF-7O-aKU" id="JmT-jc-DJ8"/>
                         <outlet property="debugMenuItem" destination="UqE-mp-gtV" id="OnR-lr-Zlt"/>
-                        <outlet property="enableWebInspectorMenuItem" destination="EwI-z4-ZA3" id="EGp-lP-f91"/>
                         <outlet property="groupArticlesByFeedMenuItem" destination="Zxm-O6-NRE" id="gwn-VT-2YZ"/>
                         <outlet property="sortByNewestArticleOnTopMenuItem" destination="TNS-TV-n0U" id="gix-Nd-9k4"/>
                         <outlet property="sortByOldestArticleOnTopMenuItem" destination="iii-kP-qoF" id="fTe-Tf-EWG"/>
diff --git a/Mac/MainWindow/Detail/DetailWebViewController.swift b/Mac/MainWindow/Detail/DetailWebViewController.swift
index 9f2c08b12..4ebf7a697 100644
--- a/Mac/MainWindow/Detail/DetailWebViewController.swift
+++ b/Mac/MainWindow/Detail/DetailWebViewController.swift
@@ -61,9 +61,7 @@ final class DetailWebViewController: NSViewController, WKUIDelegate {
 		let preferences = WKPreferences()
 		preferences.minimumFontSize = 12.0
 		preferences.javaScriptCanOpenWindowsAutomatically = false
-		preferences.javaEnabled = false
 		preferences.javaScriptEnabled = true
-		preferences.plugInsEnabled = false
 
 		let configuration = WKWebViewConfiguration()
 		configuration.preferences = preferences
diff --git a/xcconfig/NetNewsWire_project.xcconfig b/xcconfig/NetNewsWire_project.xcconfig
index e093d1156..7450fcc47 100644
--- a/xcconfig/NetNewsWire_project.xcconfig
+++ b/xcconfig/NetNewsWire_project.xcconfig
@@ -39,7 +39,7 @@ GCC_WARN_UNDECLARED_SELECTOR = YES
 GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE
 GCC_WARN_UNUSED_FUNCTION = YES
 GCC_WARN_UNUSED_VARIABLE = YES
-MACOSX_DEPLOYMENT_TARGET = 10.14.4
+MACOSX_DEPLOYMENT_TARGET = 10.15
 IPHONEOS_DEPLOYMENT_TARGET = 13.0
 //SDKROOT = macosx
 SWIFT_SWIFT3_OBJC_INFERENCE = Off
diff --git a/xcconfig/common/NetNewsWire_mac_target_common.xcconfig b/xcconfig/common/NetNewsWire_mac_target_common.xcconfig
index 081ef96e7..74c6e10e2 100644
--- a/xcconfig/common/NetNewsWire_mac_target_common.xcconfig
+++ b/xcconfig/common/NetNewsWire_mac_target_common.xcconfig
@@ -5,4 +5,4 @@ CURRENT_PROJECT_VERSION = 2612
 ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = NO
 ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon
 COMBINE_HIDPI_IMAGES = YES
-MACOSX_DEPLOYMENT_TARGET = 10.14.4
+MACOSX_DEPLOYMENT_TARGET = 10.15