diff --git a/mozilla-nss.changes b/mozilla-nss.changes
index be724dd..f7fa1b5 100644
--- a/mozilla-nss.changes
+++ b/mozilla-nss.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Dec 29 11:27:06 UTC 2021 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- update to NSS 3.73.1:
+  * Add SHA-2 support to mozilla::pkix's OSCP implementation
+
 -------------------------------------------------------------------
 Wed Dec  1 17:45:43 UTC 2021 - Wolfgang Rosenauer <wr@rosenauer.org>
 
diff --git a/mozilla-nss.spec b/mozilla-nss.spec
index 0c5a6fe..f7d37dd 100644
--- a/mozilla-nss.spec
+++ b/mozilla-nss.spec
@@ -22,9 +22,9 @@
 %define nspr_ver %(rpm -q --queryformat '%%{VERSION}' mozilla-nspr)
 %define nssdbdir %{_sysconfdir}/pki/nssdb
 Name:           mozilla-nss
-Version:        3.73
+Version:        3.73.1
 Release:        0
-%define underscore_version 3_73
+%define underscore_version 3_73_1
 Summary:        Network Security Services
 License:        MPL-2.0
 Group:          System/Libraries
diff --git a/nss-3.73.1.tar.gz b/nss-3.73.1.tar.gz
new file mode 100644
index 0000000..c58edc2
--- /dev/null
+++ b/nss-3.73.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c768f9fe3129e8bcc2e9679456d7edd9453a225784a8fc7dc4501806f1fe9abe
+size 83931597
diff --git a/nss-3.73.tar.gz b/nss-3.73.tar.gz
deleted file mode 100644
index da69c97..0000000
--- a/nss-3.73.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:566d3a68da9b10d7da9ef84eb4fe182f8f04e20d85c55d1bf360bb2c0096d8e5
-size 83928905