diff --git a/programming/language/python3/cython3/pspec.xml b/programming/language/python3/cython3/pspec.xml
index 91dd46e873..6694f6ee33 100644
--- a/programming/language/python3/cython3/pspec.xml
+++ b/programming/language/python3/cython3/pspec.xml
@@ -14,7 +14,7 @@
         <IsA>library</IsA>
         <Summary>C extensions for the Python3</Summary>
         <Description>Cython is a language that makes writing C extensions for the Python language as easy as Python itself.</Description>
-        <Archive sha1sum="718dcfee83132421e2df4eb6fa0ef7f3917bf7b9" type="targz">https://github.com/cython/cython/archive/0.29.21.tar.gz</Archive>
+        <Archive sha1sum="1b4fa0055a1d165339c763abc619fd8a13fa69e7" type="targz">https://github.com/cython/cython/archive/0.29.23.tar.gz</Archive>
         <BuildDependencies>
             <Dependency>python3-devel</Dependency>
             <Dependency>python3-setuptools</Dependency>
@@ -36,6 +36,13 @@
     </Package>
 
     <History>
+        <Update release="12">
+            <Date>2021-06-23</Date>
+            <Version>0.29.23</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Mustafa Cinasal</Name>
+            <Email>muscnsl@gmail.com</Email>
+        </Update>
         <Update release="11">
             <Date>2020-11-07</Date>
             <Version>0.29.21</Version>