diff --git a/Cartfile b/Cartfile
index 4025b2c3..da1117b1 100644
--- a/Cartfile
+++ b/Cartfile
@@ -1 +1 @@
-github "tsolomko/BitByteData" ~> 1.4
+github "tsolomko/BitByteData" "develop"
diff --git a/Package.swift b/Package.swift
index 6b4303b5..445ff43d 100644
--- a/Package.swift
+++ b/Package.swift
@@ -13,7 +13,7 @@ let package = Package(
         // .package(url: "https://github.com/jakeheis/SwiftCLI",
         //          from: "5.2.0"),
         .package(url: "https://github.com/tsolomko/BitByteData",
-                 from: "1.4.0"),
+                 .branch("develop")),
     ],
     targets: [
         // SWCOMP: Uncomment the lines below to build swcomp example program.