diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
new file mode 100644
index 0000000..14fbcfa
--- /dev/null
+++ b/.github/workflows/continuous-integration.yml
@@ -0,0 +1,23 @@
+name: Continuous Integration
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  continuous-integration:
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - macOS-latest
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v1
+      - run: rm .swift-version
+      - name: Install Swift
+        uses: YOCKOW/Action-setup-swift@master
+        with:
+          swift-version: '5.1'
+      - name: Test
+        run: swift test --enable-test-discovery
diff --git a/Package.swift b/Package.swift
index 6d57ba8..3c5cacc 100644
--- a/Package.swift
+++ b/Package.swift
@@ -18,8 +18,11 @@ let package = Package(
     targets: [
         .target(
             name: "MoreCodable",
-            path: "Sources")
+            path: "Sources"),
+        .testTarget(
+            name: "MoreCodableTests",
+            dependencies: ["MoreCodable"],
+            path: "Tests")
     ],
     swiftLanguageVersions: [.v5]
 )
-
diff --git a/Sources/MoreJSONDecoder.swift b/Sources/MoreJSONDecoder.swift
index 2f884f3..3fca0af 100644
--- a/Sources/MoreJSONDecoder.swift
+++ b/Sources/MoreJSONDecoder.swift
@@ -13,6 +13,7 @@
 //  Modifications copyright (c) 2019 Daniil Pendikov
 
 import Foundation
+import CoreFoundation
 
 fileprivate protocol _JSONStringDictionaryDecodableMarker {
     static var elementType: Decodable.Type { get }
@@ -1108,36 +1109,16 @@ extension _JSONDecoder {
     fileprivate func unbox(_ value: Any, as type: Bool.Type) throws -> Bool? {
         guard !(value is NSNull) else { return nil }
         
-        #if DEPLOYMENT_RUNTIME_SWIFT
-        // Bridging differences require us to split implementations here
-        guard let number = __SwiftValue.store(value) as? NSNumber else {
-            throw DecodingError._typeMismatch(at: self.codingPath, expectation: type, reality: value)
-        }
-        
-        // TODO: Add a flag to coerce non-boolean numbers into Bools?
-        guard number._cfTypeID == CFBooleanGetTypeID() else {
-            throw DecodingError._typeMismatch(at: self.codingPath, expectation: type, reality: value)
-        }
-        
-        return number.boolValue
-        #else
         if let number = value as? NSNumber {
             // TODO: Add a flag to coerce non-boolean numbers into Bools?
-            if number === kCFBooleanTrue as NSNumber {
+            if number === kCFBooleanTrue {
                 return true
-            } else if number === kCFBooleanFalse as NSNumber {
+            } else if number === kCFBooleanFalse {
                 return false
             }
-            
-            /* FIXME: If swift-corelibs-foundation doesn't change to use NSNumber, this code path will need to be included and tested:
-             } else if let bool = value as? Bool {
-             return bool
-             */
-            
         }
         
         throw DecodingError._typeMismatch(at: self.codingPath, expectation: type, reality: value)
-        #endif
     }
     
     fileprivate func unbox(_ value: Any, as type: Int.Type) throws -> Int? {