diff --git a/.gitignore b/.gitignore
index b844aa4..60d4d3e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -67,3 +67,4 @@ TestUser51.cert
 /nss-3.69.tar.gz
 /nspr-4.32.tar.gz
 /nss-3.71.tar.gz
+/nss-3.73.tar.gz
diff --git a/nss.spec b/nss.spec
index e373644..9e01d68 100644
--- a/nss.spec
+++ b/nss.spec
@@ -1,5 +1,5 @@
 %global nspr_version 4.32.0
-%global nss_version 3.71.0
+%global nss_version 3.73.0
 # NOTE: To avoid NVR clashes of nspr* packages:
 # - reset %%{nspr_release} to 1, when updating %%{nspr_version}
 # - increment %%{nspr_version}, when updating the NSS part only
@@ -1059,6 +1059,10 @@ update-crypto-policies &> /dev/null || :
 
 
 %changelog
+* Wed Dec 1 2021 Bob Relyea <rrelyea@redhat.com> - 3.73.0-1
+- Update to 3.73
+- includes CVE 2021-43527
+
 * Mon Oct 4 2021 Bob Relyea <rrelyea@redhat.com> - 3.71.0-1
 - Update to 3.71
 
diff --git a/sources b/sources
index 6e0c873..b87949a 100644
--- a/sources
+++ b/sources
@@ -3,5 +3,5 @@ SHA512 (blank-cert9.db) = 2f8eab4c0612210ee47db8a3a80c1b58a0b43849551af78c7da403
 SHA512 (blank-key3.db) = 01f7314e9fc8a7c9aa997652624cfcde213d18a6b3bb31840c1a60bbd662e56b5bc3221d13874abb42ce78163b225a6dfce2e1326cf6dd29366ad9c28ba5a71c
 SHA512 (blank-key4.db) = 8fedae93af7163da23fe9492ea8e785a44c291604fa98e58438448efb69c85d3253fc22b926d5c3209c62e58a86038fd4d78a1c4c068bc00600a7f3e5382ebe7
 SHA512 (blank-secmod.db) = 06a2dbd861839ef6315093459328b500d3832333a34b30e6fac4a2503af337f014a4d319f0f93322409e719142904ce8bc08252ae9a4f37f30d4c3312e900310
-SHA512 (nss-3.71.tar.gz) = a4a724dc4e8677965b6245ea2309790d31ec7719658e2b349eb67c9008082132c76277340d15e4fdd8d2fe1f560ae6803fb038d023c3dfd2e3772fa3b77720e2
+SHA512 (nss-3.73.tar.gz) = 84b6e4ce8838f77674a5587cd227fa103c80f1b36c8bfb9b60a175157f131e59153c79ee77b29feffa57f49b217a90a8a091ee368eb0bc03312894e386a4c01b
 SHA512 (nspr-4.32.tar.gz) = da9b65b374783d20a2e589211b411816d899e296e91175d376e59df1919144c1808c155a234d6ceefdf7b8ae8f47cec98d92a5aa3150a579513251860e50dcb7