diff --git a/.swift-version b/.swift-version
index 5186d07..819e07a 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-4.0
+5.0
diff --git a/Gridicons/Gridicons.xcodeproj/project.pbxproj b/Gridicons/Gridicons.xcodeproj/project.pbxproj
index f0257d3..0a21dd5 100644
--- a/Gridicons/Gridicons.xcodeproj/project.pbxproj
+++ b/Gridicons/Gridicons.xcodeproj/project.pbxproj
@@ -288,7 +288,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -343,7 +343,7 @@
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";