diff --git a/AutoPkgr.xcodeproj/project.pbxproj b/AutoPkgr.xcodeproj/project.pbxproj
index 7b9a4d6..8b75308 100644
--- a/AutoPkgr.xcodeproj/project.pbxproj
+++ b/AutoPkgr.xcodeproj/project.pbxproj
@@ -3149,7 +3149,7 @@
 				INFOPLIST_FILE = "AutoPkgr/Supporting Files/AutoPkgr-Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
-				MARKETING_VERSION = 1.5.6;
+				MARKETING_VERSION = 1.5.7;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_CODE_SIGN_FLAGS = "";
 				"OTHER_CODE_SIGN_FLAGS[sdk=*]" = "--options=runtime";
@@ -3214,7 +3214,7 @@
 				INFOPLIST_FILE = "AutoPkgr/Supporting Files/AutoPkgr-Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
-				MARKETING_VERSION = 1.5.6;
+				MARKETING_VERSION = 1.5.7;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_CODE_SIGN_FLAGS = "";
 				"OTHER_CODE_SIGN_FLAGS[sdk=*]" = "--options=runtime";
@@ -3339,7 +3339,7 @@
 				INSTALL_PATH = "";
 				"INSTALL_PATH[sdk=*]" = /Library/PrivilegedHelperTools/;
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
-				MARKETING_VERSION = 1.5.6;
+				MARKETING_VERSION = 1.5.7;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_CFLAGS = (
@@ -3396,7 +3396,7 @@
 				INSTALL_PATH = "";
 				"INSTALL_PATH[sdk=*]" = /Library/PrivilegedHelperTools/;
 				MACOSX_DEPLOYMENT_TARGET = 10.13;
-				MARKETING_VERSION = 1.5.6;
+				MARKETING_VERSION = 1.5.7;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_CFLAGS = (
diff --git a/AutoPkgr/Models/AutoPkg Task/LGAutoPkgRepo.m b/AutoPkgr/Models/AutoPkg Task/LGAutoPkgRepo.m
index c0ed9e0..76c0174 100644
--- a/AutoPkgr/Models/AutoPkg Task/LGAutoPkgRepo.m	
+++ b/AutoPkgr/Models/AutoPkg Task/LGAutoPkgRepo.m	
@@ -46,7 +46,7 @@ - (instancetype)initWithGitHubDictionary:(NSDictionary *)dictionary
     if (self = [super init]) {
         _name = dictionary[@"name"];
         _cloneURL = [NSURL URLWithString:dictionary[@"clone_url"]];
-        _defaultBranch = dictionary[@"default_branch"];
+        _defaultBranch = dictionary[@"default_branch"] ?: @"master";
 
         _homeURL = [NSURL URLWithString:dictionary[@"html_url"]];
         _stars = [dictionary[@"stargazers_count"] integerValue];
@@ -114,7 +114,7 @@ - (NSString *)path
 - (NSString *)defaultBranch
 {
     if (!_defaultBranch) {
-        _defaultBranch = @"default_branch";
+        _defaultBranch = @"master";
     }
     return _defaultBranch;
 }
diff --git a/AutoPkgr/Supporting Files/AutoPkgr-Info.plist b/AutoPkgr/Supporting Files/AutoPkgr-Info.plist
index c2f0e4b..b31cd8a 100755
--- a/AutoPkgr/Supporting Files/AutoPkgr-Info.plist	
+++ b/AutoPkgr/Supporting Files/AutoPkgr-Info.plist	
@@ -17,11 +17,11 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.5.6</string>
+	<string>1.5.7</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>1484</string>
+	<string>1492</string>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.utilities</string>
 	<key>LSMinimumSystemVersion</key>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3d95efa..cce76aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,13 @@ All notable changes to this project will be documented in this file. This projec
 
 ## [Unreleased](unreleased)
 
+## [1.5.7] - 2021-03-05
+
+### Fixed
+
+- Corrected default branch invocation to avoid issues when working with integrations and repos. This resolves issue [#665](https://github.com/lindegroup/autopkgr/issues/665) and [#668](https://github.com/lindegroup/autopkgr/issues/668). Thanks to [@apizz](https://github.com/apizz) and [@jaw4uz](https://github.com/jaw4uz) for the reports!
+- Issue [#666](https://github.com/lindegroup/autopkgr/issues/666), unrelated to AutoPkgr has been resolved by the release of [AutoPkg 2.3.1](https://github.com/autopkg/autopkg/releases/tag/v2.3.1). Thanks to [@homebysix](https://github.com/homebysix) for [#723](https://github.com/autopkg/autopkg/issues/723) and [#724](https://github.com/autopkg/autopkg/pull/724) for the reports and fixes!  
+
 ## [1.5.6] - 2021-02-23
 
 ### Changed
@@ -505,7 +512,8 @@ All notable changes to this project will be documented in this file. This projec
 - Initial public release of AutoPkgr.
 
 
-[unreleased]: https://github.com/lindegroup/autopkgr/compare/v1.5.6...HEAD
+[unreleased]: https://github.com/lindegroup/autopkgr/compare/v1.5.7...HEAD
+[1.5.7]: https://github.com/lindegroup/autopkgr/compare/v1.5.6...v1.5.7
 [1.5.6]: https://github.com/lindegroup/autopkgr/compare/v1.5.5...v1.5.6
 [1.5.5]: https://github.com/lindegroup/autopkgr/compare/v1.5.4...v1.5.5
 [1.5.4]: https://github.com/lindegroup/autopkgr/compare/v1.5.3...v1.5.4
diff --git a/Privileged Helper/helper-Info.plist b/Privileged Helper/helper-Info.plist
index 5243794..288e05b 100644
--- a/Privileged Helper/helper-Info.plist	
+++ b/Privileged Helper/helper-Info.plist	
@@ -9,7 +9,7 @@
 	<key>CFBundleName</key>
 	<string>com.lindegroup.AutoPkgr.helper</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.5.6</string>
+	<string>1.5.7</string>
 	<key>CFBundleVersion</key>
 	<string>$(CURRENT_PROJECT_VERSION)</string>
 	<key>SMAuthorizedClients</key>