diff --git a/Cargo.lock b/Cargo.lock
index 8b47122c..e4b7720f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -476,9 +476,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.100"
+version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52205623b1b0f064a4e71182c3b18ae902267282930c6d5462c91b859668426e"
+checksum = "4ae548ec36cf198c0ef7710d3c230987c2d6d7bd98ad6edc0274462724c585ce"
 dependencies = [
  "proc-macro2",
  "quote",