diff --git a/build.properties.default b/build.properties.default
index 87b27a83d649..5f6ec444f507 100644
--- a/build.properties.default
+++ b/build.properties.default
@@ -163,7 +163,7 @@ commons-pool-src.loc.1=${base-commons.loc.1}/pool/source/commons-pool-${commons-
 commons-pool-src.loc.2=${base-commons.loc.2}/pool/source/commons-pool-${commons-pool.version}-src.tar.gz
 
 # ----- NSIS, version 3.0 or later -----
-nsis.version=3.02.1
+nsis.version=3.03
 nsis.home=${base.path}/nsis-${nsis.version}
 nsis.exe=${nsis.home}/makensis.exe
 nsis.arch.dir=x86-unicode/
diff --git a/webapps/docs/changelog.xml b/webapps/docs/changelog.xml
index de67b5b70764..9ba89842348e 100644
--- a/webapps/docs/changelog.xml
+++ b/webapps/docs/changelog.xml
@@ -84,6 +84,14 @@
       </fix>
     </changelog>
   </subsection>
+  <subsection name="Other">
+    <changelog>
+      <update>
+        Update the NSIS Installer used to build the Windows installer to version
+        3.03. (kkolinko)
+      </update>
+    </changelog>
+  </subsection>
 </section>
 <section name="Tomcat 7.0.84 (violetagg)" rtext="released 2018-01-24">
   <subsection name="Catalina">