diff --git a/.gitignore b/.gitignore
index bc8a335..928d1da 100644
--- a/.gitignore
+++ b/.gitignore
@@ -107,3 +107,5 @@ samba-3.6.0pre1.tar.gz
 /samba-4.7.1.tar.asc
 /samba-4.7.2.tar.xz
 /samba-4.7.2.tar.asc
+/samba-4.7.3.tar.xz
+/samba-4.7.3.tar.asc
diff --git a/samba.spec b/samba.spec
index 4a97eff..e7136bf 100644
--- a/samba.spec
+++ b/samba.spec
@@ -8,7 +8,7 @@
 
 %define main_release 0
 
-%define samba_version 4.7.2
+%define samba_version 4.7.3
 %define talloc_version 2.1.10
 %define tdb_version 1.3.15
 %define tevent_version 0.9.34
@@ -3374,6 +3374,10 @@ rm -rf %{buildroot}
 %endif # with_clustering_support
 
 %changelog
+* Tue Nov 21 2017 Guenther Deschner <gdeschner@redhat.com> - 4.7.3-0
+- Update to Samba 4.7.3
+- resolves: #1515692 - Security fix for CVE-2017-14746 and CVE-2017-15275
+
 * Wed Nov 15 2017 Guenther Deschner <gdeschner@redhat.com> - 4.7.2-0
 - resolves: #1513452 - Update to Samba 4.7.2
 
diff --git a/sources b/sources
index 02ecc81..36602ba 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (samba-4.7.2.tar.xz) = 677b18bb6566b7f4a2890c4a6de79192ab2ead97959d63867c53da12730d3d7ca19d5fca53844ccde3829e36b7daad897b8cb88acd1a889b40f8ed87f916a0e7
-SHA512 (samba-4.7.2.tar.asc) = b1f69ad04c0a44a84e41e574b52705fe8a903b6d7d9fa8c8800934c48755b4378f28b0823d9b37ccf73a5f3c02f0439c80b60fd1faf45523dd49f9c9ec0e4001
+SHA512 (samba-4.7.3.tar.xz) = f2999d0abfd008024bd2882cbfa70afdc72744fa173fcbc837e721baf4cdaed038fa9be917a8ec438e7c910c85ac1f5726b2a6abce497d430683271de5326c25
+SHA512 (samba-4.7.3.tar.asc) = 18018491f81429ce7e8f51a8ca29258a885ecde0757fa44b4159b81d351b20bf23286052f6f84f0b3c37fe60fb01b00363f68e5ba06f51f58c5e6b617556bebb