diff --git a/Package.swift b/Package.swift
index 6cbcfda2..af8254e8 100644
--- a/Package.swift
+++ b/Package.swift
@@ -25,5 +25,5 @@ let package = Package(
             sources: ["spm.cpp"],
             publicHeadersPath: ".")
     ],
-    cxxLanguageStandard: .cxx20
+    cxxLanguageStandard: .cxx14
 )