diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20272126c..412ca4e7b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 The changelog for `SuperwallKit`. Also see the [releases](https://github.com/superwall/Superwall-iOS/releases) on GitHub.
 
+## Unreleased
+
+### Fixes
+
+- Bumps the declared minimum macOS deployment target from 10.12 to 10.15 in `Package.swift` to match the macOS version required by the SDK's actual code (`Combine`, `async/await`, `UnsafeContinuation`). This makes integration into Mac Catalyst targets fail at resolve time with a clear deployment-target message instead of producing confusing "is only available in macOS 10.15 or newer" errors deep in the source.
+
 ## 4.15.4
 
 ### Enhancements
diff --git a/Package.swift b/Package.swift
index c1fe431dc..3898dbfba 100644
--- a/Package.swift
+++ b/Package.swift
@@ -8,7 +8,7 @@ let package = Package(
   defaultLocalization: "en",
   platforms: [
     .iOS(.v13),
-    .macOS(.v10_12),
+    .macOS(.v10_15),
     .watchOS("6.2")
   ],
   products: [