diff --git a/Package.resolved b/Package.resolved
index 671fd93..ea4f372 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -36,22 +36,13 @@
         "version" : "1.0.2"
       }
     },
-    {
-      "identity" : "swift-system",
-      "kind" : "remoteSourceControl",
-      "location" : "https://github.com/apple/swift-system.git",
-      "state" : {
-        "revision" : "836bc4557b74fe6d2660218d56e3ce96aff76574",
-        "version" : "1.1.1"
-      }
-    },
     {
       "identity" : "swift-tools-support-core",
       "kind" : "remoteSourceControl",
-      "location" : "https://github.com/apple/swift-tools-support-core.git",
+      "location" : "https://github.com/swiftlang/swift-tools-support-core.git",
       "state" : {
-        "revision" : "93784c59434dbca8e8a9e4b700d0d6d94551da6a",
-        "version" : "0.5.2"
+        "revision" : "c574915fe88e942e4c4c93376f022daa2ecf05f9",
+        "version" : "0.8.0"
       }
     }
   ],
diff --git a/Package.swift b/Package.swift
index 22b2edd..52e93ed 100644
--- a/Package.swift
+++ b/Package.swift
@@ -17,7 +17,7 @@ let package = Package(
     dependencies: [
         .package(url: "https://github.com/SwiftPackageIndex/ShellQuote", from: "1.0.2"),
         .package(url: "https://github.com/apple/swift-log.git", from: "1.0.0"),
-        .package(url: "https://github.com/apple/swift-tools-support-core.git", from: "0.5.2"),
+        .package(url: "https://github.com/swiftlang/swift-tools-support-core.git", from: "0.5.2"),
         .package(url: "https://github.com/apple/swift-algorithms.git", from: "1.0.0"),
     ],
     targets: [