diff --git a/Android.bp b/Android.bp
index 6e5e11d..4e87f35 100644
--- a/Android.bp
+++ b/Android.bp
@@ -13,7 +13,7 @@
 }
 
 // dependent_library ["feature_list"]
-//   proc-macro2-1.0.19 "default,proc-macro"
+//   proc-macro2-1.0.24 "default,proc-macro"
 //   quote-1.0.7 "default,proc-macro"
-//   syn-1.0.38 "clone-impls,default,derive,extra-traits,full,parsing,printing,proc-macro,quote,visit,visit-mut"
+//   syn-1.0.48 "clone-impls,default,derive,extra-traits,full,parsing,printing,proc-macro,quote,visit,visit-mut"
 //   unicode-xid-0.2.1 "default"