diff --git a/SWCompression.podspec b/SWCompression.podspec
index 197d7a10..a3b37328 100644
--- a/SWCompression.podspec
+++ b/SWCompression.podspec
@@ -18,10 +18,10 @@ Pod::Spec.new do |s|
 
   s.author       = { "Timofey Solomko" => "tsolomko@gmail.com" }
 
-  s.ios.deployment_target = "10.1"
-  s.osx.deployment_target = "10.12"
-  s.tvos.deployment_target = "10.0"
-  s.watchos.deployment_target = "3.1"
+  s.ios.deployment_target = "8.0"
+  s.osx.deployment_target = "10.10"
+  s.tvos.deployment_target = "9.0"
+  s.watchos.deployment_target = "2.0"
 
   s.source       = { :git => "https://github.com/tsolomko/SWCompression.git", :tag => "v#{s.version}" }
 
diff --git a/SWCompression.xcodeproj/project.pbxproj b/SWCompression.xcodeproj/project.pbxproj
index d8d97101..bc1057e6 100644
--- a/SWCompression.xcodeproj/project.pbxproj
+++ b/SWCompression.xcodeproj/project.pbxproj
@@ -189,7 +189,7 @@
 		06A393401DE070B500182E12 /* Info-watchOS.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = "Info-watchOS.plist"; sourceTree = "<group>"; };
 		06A393411DE070B500182E12 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		06A393421DE070B500182E12 /* SWCompression.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = SWCompression.h; sourceTree = "<group>"; };
-		06B374C61E0EECB700064853 /* random_file.answer */ = {isa = PBXFileReference; lastKnownFileType = file; path = random_file.answer; sourceTree = "<group>"; };
+		06B374C61E0EECB700064853 /* random_file.answer */ = {isa = PBXFileReference; lastKnownFileType = text; path = random_file.answer; sourceTree = "<group>"; };
 		06B374C81E0EECCC00064853 /* random_file.gz */ = {isa = PBXFileReference; lastKnownFileType = archive.gzip; path = random_file.gz; sourceTree = "<group>"; };
 		06B374CA1E0EECD500064853 /* random_file.zlib */ = {isa = PBXFileReference; lastKnownFileType = file; path = random_file.zlib; sourceTree = "<group>"; };
 		06BB8F2F1E0C2C720079FB9E /* LZMA2.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LZMA2.swift; sourceTree = "<group>"; };
@@ -204,22 +204,22 @@
 		06CC18411DE35269003532F5 /* test3.answer */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = test3.answer; sourceTree = "<group>"; };
 		06CC18421DE35269003532F5 /* test4.answer */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = test4.answer; sourceTree = "<group>"; };
 		06CC18431DE35269003532F5 /* test5.answer */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = test5.answer; sourceTree = "<group>"; };
-		06CC18441DE35269003532F5 /* test6.answer */ = {isa = PBXFileReference; lastKnownFileType = file; path = test6.answer; sourceTree = "<group>"; };
-		06CC18451DE35269003532F5 /* test7.answer */ = {isa = PBXFileReference; lastKnownFileType = file; path = test7.answer; sourceTree = "<group>"; };
-		06CC18471DE35269003532F5 /* test1.bz2 */ = {isa = PBXFileReference; lastKnownFileType = file; path = test1.bz2; sourceTree = "<group>"; };
-		06CC18481DE35269003532F5 /* test2.bz2 */ = {isa = PBXFileReference; lastKnownFileType = file; path = test2.bz2; sourceTree = "<group>"; };
-		06CC18491DE35269003532F5 /* test3.bz2 */ = {isa = PBXFileReference; lastKnownFileType = file; path = test3.bz2; sourceTree = "<group>"; };
-		06CC184A1DE35269003532F5 /* test4.bz2 */ = {isa = PBXFileReference; lastKnownFileType = file; path = test4.bz2; sourceTree = "<group>"; };
-		06CC184B1DE35269003532F5 /* test5.bz2 */ = {isa = PBXFileReference; lastKnownFileType = file; path = test5.bz2; sourceTree = "<group>"; };
-		06CC184C1DE35269003532F5 /* test6.bz2 */ = {isa = PBXFileReference; lastKnownFileType = file; path = test6.bz2; sourceTree = "<group>"; };
-		06CC184D1DE35269003532F5 /* test7.bz2 */ = {isa = PBXFileReference; lastKnownFileType = file; path = test7.bz2; sourceTree = "<group>"; };
-		06CC184F1DE35269003532F5 /* test1.deflate */ = {isa = PBXFileReference; lastKnownFileType = file; path = test1.deflate; sourceTree = "<group>"; };
-		06CC18501DE35269003532F5 /* test2.deflate */ = {isa = PBXFileReference; lastKnownFileType = file; path = test2.deflate; sourceTree = "<group>"; };
-		06CC18511DE35269003532F5 /* test3.deflate */ = {isa = PBXFileReference; lastKnownFileType = file; path = test3.deflate; sourceTree = "<group>"; };
-		06CC18521DE35269003532F5 /* test4.deflate */ = {isa = PBXFileReference; lastKnownFileType = file; path = test4.deflate; sourceTree = "<group>"; };
-		06CC18531DE35269003532F5 /* test5.deflate */ = {isa = PBXFileReference; lastKnownFileType = file; path = test5.deflate; sourceTree = "<group>"; };
-		06CC18541DE35269003532F5 /* test6.deflate */ = {isa = PBXFileReference; lastKnownFileType = file; path = test6.deflate; sourceTree = "<group>"; };
-		06CC18551DE35269003532F5 /* test7.deflate */ = {isa = PBXFileReference; lastKnownFileType = file; path = test7.deflate; sourceTree = "<group>"; };
+		06CC18441DE35269003532F5 /* test6.answer */ = {isa = PBXFileReference; lastKnownFileType = text; path = test6.answer; sourceTree = "<group>"; };
+		06CC18451DE35269003532F5 /* test7.answer */ = {isa = PBXFileReference; lastKnownFileType = text; path = test7.answer; sourceTree = "<group>"; };
+		06CC18471DE35269003532F5 /* test1.bz2 */ = {isa = PBXFileReference; lastKnownFileType = text; path = test1.bz2; sourceTree = "<group>"; };
+		06CC18481DE35269003532F5 /* test2.bz2 */ = {isa = PBXFileReference; lastKnownFileType = text; path = test2.bz2; sourceTree = "<group>"; };
+		06CC18491DE35269003532F5 /* test3.bz2 */ = {isa = PBXFileReference; lastKnownFileType = text; path = test3.bz2; sourceTree = "<group>"; };
+		06CC184A1DE35269003532F5 /* test4.bz2 */ = {isa = PBXFileReference; lastKnownFileType = text; path = test4.bz2; sourceTree = "<group>"; };
+		06CC184B1DE35269003532F5 /* test5.bz2 */ = {isa = PBXFileReference; lastKnownFileType = text; path = test5.bz2; sourceTree = "<group>"; };
+		06CC184C1DE35269003532F5 /* test6.bz2 */ = {isa = PBXFileReference; lastKnownFileType = text; path = test6.bz2; sourceTree = "<group>"; };
+		06CC184D1DE35269003532F5 /* test7.bz2 */ = {isa = PBXFileReference; lastKnownFileType = text; path = test7.bz2; sourceTree = "<group>"; };
+		06CC184F1DE35269003532F5 /* test1.deflate */ = {isa = PBXFileReference; lastKnownFileType = text; path = test1.deflate; sourceTree = "<group>"; };
+		06CC18501DE35269003532F5 /* test2.deflate */ = {isa = PBXFileReference; lastKnownFileType = text; path = test2.deflate; sourceTree = "<group>"; };
+		06CC18511DE35269003532F5 /* test3.deflate */ = {isa = PBXFileReference; lastKnownFileType = text; path = test3.deflate; sourceTree = "<group>"; };
+		06CC18521DE35269003532F5 /* test4.deflate */ = {isa = PBXFileReference; lastKnownFileType = text; path = test4.deflate; sourceTree = "<group>"; };
+		06CC18531DE35269003532F5 /* test5.deflate */ = {isa = PBXFileReference; lastKnownFileType = text; path = test5.deflate; sourceTree = "<group>"; };
+		06CC18541DE35269003532F5 /* test6.deflate */ = {isa = PBXFileReference; lastKnownFileType = text; path = test6.deflate; sourceTree = "<group>"; };
+		06CC18551DE35269003532F5 /* test7.deflate */ = {isa = PBXFileReference; lastKnownFileType = text; path = test7.deflate; sourceTree = "<group>"; };
 		06CC18571DE35269003532F5 /* test1.gz */ = {isa = PBXFileReference; lastKnownFileType = archive.gzip; path = test1.gz; sourceTree = "<group>"; };
 		06CC18581DE35269003532F5 /* test2.gz */ = {isa = PBXFileReference; lastKnownFileType = archive.gzip; path = test2.gz; sourceTree = "<group>"; };
 		06CC18591DE35269003532F5 /* test3.gz */ = {isa = PBXFileReference; lastKnownFileType = archive.gzip; path = test3.gz; sourceTree = "<group>"; };
@@ -230,13 +230,13 @@
 		06CC185F1DE35269003532F5 /* test.zlib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = test.zlib; sourceTree = "<group>"; };
 		06CC187E1DE35607003532F5 /* DeflateTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = DeflateTests.swift; sourceTree = "<group>"; };
 		06E2346B1E068E9600F18798 /* XZArchive.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = XZArchive.swift; sourceTree = "<group>"; };
-		06E234711E069A7F00F18798 /* test1.xz */ = {isa = PBXFileReference; lastKnownFileType = file; path = test1.xz; sourceTree = "<group>"; };
-		06E234721E069A7F00F18798 /* test2.xz */ = {isa = PBXFileReference; lastKnownFileType = file; path = test2.xz; sourceTree = "<group>"; };
-		06E234731E069A7F00F18798 /* test3.xz */ = {isa = PBXFileReference; lastKnownFileType = file; path = test3.xz; sourceTree = "<group>"; };
-		06E234741E069A7F00F18798 /* test4.xz */ = {isa = PBXFileReference; lastKnownFileType = file; path = test4.xz; sourceTree = "<group>"; };
-		06E234751E069A7F00F18798 /* test5.xz */ = {isa = PBXFileReference; lastKnownFileType = file; path = test5.xz; sourceTree = "<group>"; };
-		06E234761E069A7F00F18798 /* test6.xz */ = {isa = PBXFileReference; lastKnownFileType = file; path = test6.xz; sourceTree = "<group>"; };
-		06E234771E069A7F00F18798 /* test7.xz */ = {isa = PBXFileReference; lastKnownFileType = file; path = test7.xz; sourceTree = "<group>"; };
+		06E234711E069A7F00F18798 /* test1.xz */ = {isa = PBXFileReference; lastKnownFileType = text; path = test1.xz; sourceTree = "<group>"; };
+		06E234721E069A7F00F18798 /* test2.xz */ = {isa = PBXFileReference; lastKnownFileType = text; path = test2.xz; sourceTree = "<group>"; };
+		06E234731E069A7F00F18798 /* test3.xz */ = {isa = PBXFileReference; lastKnownFileType = text; path = test3.xz; sourceTree = "<group>"; };
+		06E234741E069A7F00F18798 /* test4.xz */ = {isa = PBXFileReference; lastKnownFileType = text; path = test4.xz; sourceTree = "<group>"; };
+		06E234751E069A7F00F18798 /* test5.xz */ = {isa = PBXFileReference; lastKnownFileType = text; path = test5.xz; sourceTree = "<group>"; };
+		06E234761E069A7F00F18798 /* test6.xz */ = {isa = PBXFileReference; lastKnownFileType = text; path = test6.xz; sourceTree = "<group>"; };
+		06E234771E069A7F00F18798 /* test7.xz */ = {isa = PBXFileReference; lastKnownFileType = text; path = test7.xz; sourceTree = "<group>"; };
 		06E2347F1E069ABD00F18798 /* XzTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = XzTests.swift; sourceTree = "<group>"; };
 		06E234811E06A6C200F18798 /* CheckSums.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; name = CheckSums.swift; path = Sources/CheckSums.swift; sourceTree = SOURCE_ROOT; };
 		06FCA0571E033DDA00B6932F /* test8.answer */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text; path = test8.answer; sourceTree = "<group>"; };
@@ -902,7 +902,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = "$(SRCROOT)/Sources/Service/Info-iOS.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 10.1;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = me.tsolomko.SWCompression;
 				PRODUCT_NAME = SWCompression;
@@ -926,7 +926,7 @@
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = "$(SRCROOT)/Sources/Service/Info-iOS.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 10.1;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = me.tsolomko.SWCompression;
 				PRODUCT_NAME = SWCompression;
@@ -957,7 +957,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = 4;
-				WATCHOS_DEPLOYMENT_TARGET = 3.1;
+				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
 			name = Debug;
 		};
@@ -981,7 +981,7 @@
 				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = 4;
 				VALIDATE_PRODUCT = YES;
-				WATCHOS_DEPLOYMENT_TARGET = 3.1;
+				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
 			name = Release;
 		};
@@ -1004,7 +1004,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = 3;
-				TVOS_DEPLOYMENT_TARGET = 10.0;
+				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
 			name = Debug;
 		};
@@ -1027,7 +1027,7 @@
 				SKIP_INSTALL = YES;
 				SWIFT_VERSION = 3.0;
 				TARGETED_DEVICE_FAMILY = 3;
-				TVOS_DEPLOYMENT_TARGET = 10.0;
+				TVOS_DEPLOYMENT_TARGET = 9.0;
 				VALIDATE_PRODUCT = YES;
 			};
 			name = Release;
@@ -1146,6 +1146,7 @@
 				INFOPLIST_FILE = "$(SRCROOT)/Sources/Service/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				PRODUCT_BUNDLE_IDENTIFIER = me.tsolomko.SWCompression;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
@@ -1170,6 +1171,7 @@
 				INFOPLIST_FILE = "$(SRCROOT)/Sources/Service/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
+				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				PRODUCT_BUNDLE_IDENTIFIER = me.tsolomko.SWCompression;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;