diff --git a/package.yml b/package.yml
--- a/package.yml
+++ b/package.yml
@@ -1,8 +1,8 @@
 name       : kotlin-native
-version    : 1.4.20
-release    : 9
+version    : 1.4.21
+release    : 10
 source     :
-    - https://github.com/JetBrains/kotlin-native/archive/v1.4.20.tar.gz : 1324b03ac9a1eed2ef7becb4fc9df3a1305c7f6db43800560beb80bf0a1ddac8
+    - https://github.com/JetBrains/kotlin-native/archive/v1.4.21.tar.gz : ebd56cbce6f069c88372eb3ff6bf69b6e638d0c6607800fea2e13579b8b9872b
     - https://download.jetbrains.com/kotlin/native/clang-llvm-8.0.0-linux-x86-64.tar.gz : a9ebf55170bdbe5e089dbf884e0bc52065b5b7bc52e9354415e25a36e10e56c5
     - https://download.jetbrains.com/kotlin/native/target-gcc-toolchain-2-linux-mips.tar.gz : b1703b2f0e1fc9e5620330f1d43c00b85ae65289796a51b827db81335207ff01
     - https://download.jetbrains.com/kotlin/native/target-gcc-toolchain-3-linux-x86-64.tar.gz : ca25fc933fe45deb142f2672d3773227a65e652ebeb7bc6cc8425f747c5f8912
diff --git a/pspec_x86_64.xml b/pspec_x86_64.xml
--- a/pspec_x86_64.xml
+++ b/pspec_x86_64.xml
@@ -2822,12 +2822,12 @@
         </Files>
     </Package>
     <History>
-        <Update release="9">
-            <Date>2020-12-01</Date>
-            <Version>1.4.20</Version>
+        <Update release="10">
+            <Date>2020-12-10</Date>
+            <Version>1.4.21</Version>
             <Comment>Packaging update</Comment>
             <Name>Campbell Jones</Name>
             <Email>dev@serebit.com</Email>
         </Update>
     </History>
 </PISI>
\ No newline at end of file