diff --git a/.gitignore b/.gitignore
index d196545..5b7bdbb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -78,3 +78,4 @@
 /syn-1.0.37.crate
 /syn-1.0.38.crate
 /syn-1.0.39.crate
+/syn-1.0.40.crate
diff --git a/rust-syn.spec b/rust-syn.spec
index 04079a3..2f88a39 100644
--- a/rust-syn.spec
+++ b/rust-syn.spec
@@ -6,7 +6,7 @@
 %global crate syn
 
 Name:           rust-%{crate}
-Version:        1.0.39
+Version:        1.0.40
 Release:        1%{?dist}
 Summary:        Parser for Rust source code
 
@@ -216,6 +216,9 @@ which use "visit-mut" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Wed Sep 09 2020 Josh Stone <jistone@redhat.com> - 1.0.40-1
+- Update to 1.0.40
+
 * Sat Aug 22 2020 Josh Stone <jistone@redhat.com> - 1.0.39-1
 - Update to 1.0.39
 
diff --git a/sources b/sources
index dad0e15..a175b51 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (syn-1.0.39.crate) = ea17897f634096d208e661b6cb2fa4d67d03a3e7fd05554f5ac8827ac288f3cc88f23f633611dbef87e4eb37846651c2ce63046eaeda5121d09356cdafa27ca8
+SHA512 (syn-1.0.40.crate) = ef0143314cdd72ff8f468e293af1da22e66f415692816b37fc96b1c17f697dc6f0358eb1ec72f47592ef6b4ebc4672250fb2a30b113e138f61504e5bb1c4745d