diff --git a/wpkg-firefox.spec b/wpkg-firefox.spec
index f357fa4..5f1180d 100644
--- a/wpkg-firefox.spec
+++ b/wpkg-firefox.spec
@@ -1,5 +1,5 @@
 %define package firefox
-%define version 52.0.2esr
+%define version 52.1.0esr
 %define release 1
 
 Name:		wpkg-%{package}
@@ -42,6 +42,9 @@ cp -r packages/* %{buildroot}/home/e-smith/files/shares/wpkg/files/packages/
 /home/e-smith/files/shares/wpkg/files/
 
 %changelog
+* Mon Apr 24 2017 Daniel Berteaud <daniel@firewall-services.com> 52.1.0esr-1
+- Update to 52.1.0esr
+
 * Mon Apr 3 2017 Daniel Berteaud <daniel@firewall-services.com> 52.0.2esr-1
 - Update to 52.0.2esr