diff --git a/SPECS/gnuplot/gnuplot.signatures.json b/SPECS/gnuplot/gnuplot.signatures.json
index 543b277315..f5610365b8 100644
--- a/SPECS/gnuplot/gnuplot.signatures.json
+++ b/SPECS/gnuplot/gnuplot.signatures.json
@@ -1,5 +1,5 @@
 {
  "Signatures": {
-  "gnuplot-5.2.4.tar.gz": "1515f000bd373aaa53b16183f274189d4f5e0ae47d22f434857933d16a4770cb"
+  "gnuplot-5.4.3.tar.gz": "51f89bbab90f96d3543f95235368d188eb1e26eda296912256abcd3535bd4d84"
  }
 }
\ No newline at end of file
diff --git a/SPECS/gnuplot/gnuplot.spec b/SPECS/gnuplot/gnuplot.spec
index 1034ab86c8..7edcc92f8b 100644
--- a/SPECS/gnuplot/gnuplot.spec
+++ b/SPECS/gnuplot/gnuplot.spec
@@ -1,7 +1,7 @@
 Summary:        Gnuplot is a portable command-line driven graphing utility.
 Name:           gnuplot
-Version:        5.2.4
-Release:        5%{?dist}
+Version:        5.4.3
+Release:        1%{?dist}
 License:        Gnuplot
 URL:            http://www.gnuplot.info/
 Group:          Applications
@@ -35,6 +35,9 @@ make DESTDIR=%{buildroot} install
 
 
 %changelog
+* Tue Feb 15 2022 Cameron Baird <cameronbaird@microsoft.com> - 5.4.3-1
+- Update source to 5.4.3
+
 * Tue Feb 08 2022 Thomas Crain <thcrain@microsoft.com> - 5.2.4-5
 - Remove unused `%%define sha1` lines
 - License verified (corrected from Freeware to Gnuplot)
diff --git a/cgmanifest.json b/cgmanifest.json
index 18d4687359..91dcf1cc15 100644
--- a/cgmanifest.json
+++ b/cgmanifest.json
@@ -4790,8 +4790,8 @@
         "type": "other",
         "other": {
           "name": "gnuplot",
-          "version": "5.2.4",
-          "downloadUrl": "http://downloads.sourceforge.net/gnuplot/gnuplot-5.2.4.tar.gz"
+          "version": "5.4.3",
+          "downloadUrl": "http://downloads.sourceforge.net/gnuplot/gnuplot-5.4.3.tar.gz"
         }
       }
     },