diff --git a/python-simplejson.changes b/python-simplejson.changes
index 1f87d3c..6a49156 100644
--- a/python-simplejson.changes
+++ b/python-simplejson.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Tue Sep  7 06:55:10 UTC 2021 - Dirk Müller <dmueller@suse.com>
+
+- update to 3.17.5:
+  * Fix the C extension module to harden is_namedtuple against looks-a-likes such
+    as Mocks. Also prevent dict encoding from causing an unraised SystemError when
+    encountering a non-Dict. Noticed by running user tests against a CPython
+    interpreter with C asserts enabled (COPTS += -UNDEBUG).
+
 -------------------------------------------------------------------
 Fri Jul 16 19:39:11 UTC 2021 - Dirk Müller <dmueller@suse.com>
 
diff --git a/python-simplejson.spec b/python-simplejson.spec
index 366ed76..b4776ed 100644
--- a/python-simplejson.spec
+++ b/python-simplejson.spec
@@ -18,7 +18,7 @@
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 Name:           python-simplejson
-Version:        3.17.3
+Version:        3.17.5
 Release:        0
 Summary:        Extensible JSON encoder/decoder for Python
 License:        AFL-2.1 OR MIT
diff --git a/simplejson-3.17.3.tar.gz b/simplejson-3.17.3.tar.gz
deleted file mode 100644
index d200a31..0000000
--- a/simplejson-3.17.3.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:da72a452bcf4349fc467a12b54ab0e63e654a571cacc44084826d52bde12b6ee
-size 82434
diff --git a/simplejson-3.17.5.tar.gz b/simplejson-3.17.5.tar.gz
new file mode 100644
index 0000000..739a32d
--- /dev/null
+++ b/simplejson-3.17.5.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:91cfb43fb91ff6d1e4258be04eee84b51a4ef40a28d899679b9ea2556322fb50
+size 83182