diff --git a/collects/racket/mpair.rkt b/collects/racket/mpair.rkt
index 6ef864b..ca65b45 100644
--- a/collects/racket/mpair.rkt
+++ b/collects/racket/mpair.rkt
@@ -1,6 +1,6 @@
-#lang scheme/base
+#lang racket/base
 
-(require (for-syntax scheme/base)
+(require (for-syntax racket/base)
          "performance-hint.rkt")
 
 (provide mmap
diff --git a/collects/racket/package.rkt b/collects/racket/package.rkt
index e5f41e6..a29c50b 100644
--- a/collects/racket/package.rkt
+++ b/collects/racket/package.rkt
@@ -1,6 +1,6 @@
-#lang scheme/base
-(require (for-syntax scheme/base
-                     scheme/list
+#lang racket/base
+(require (for-syntax racket/base
+                     racket/list
                      syntax/kerncase
                      syntax/boundmap
                      syntax/define