diff --git a/MANIFEST.MF b/MANIFEST.MF
index 7d260b6..716499a 100644
--- a/MANIFEST.MF
+++ b/MANIFEST.MF
@@ -18,12 +18,11 @@ Export-Package: org.eclipse.jdt.core,org.eclipse.jdt.core.compiler,org
  -internal:=true,org.eclipse.jdt.internal.compiler.tool;x-internal:=tr
  ue
 Bundle-Name: Eclipse Compiler for Java(TM)
-Bundle-Version: 3.18.0.v20190522-0428
+Bundle-Version: 3.20.0.v20191203-2131
 Bundle-ClassPath: .
 Built-By: genie.releng
 Bundle-ManifestVersion: 2
 Bundle-Vendor: Eclipse.org
 Created-By: Apache Maven 3.5.4
-Build-Jdk: 1.8.0_192
 Main-Class: org.eclipse.jdt.internal.compiler.batch.Main
 
diff --git a/ecj.spec b/ecj.spec
index b1a6513..116aafe 100644
--- a/ecj.spec
+++ b/ecj.spec
@@ -1,15 +1,15 @@
 Epoch: 1
 
-%global qualifier R-4.12-201906051800
+%global qualifier S-4.14RC2a-201912100610
 
 Summary: Eclipse Compiler for Java
 Name: ecj
-Version: 4.12
-Release: 2%{?dist}
+Version: 4.14
+Release: 1%{?dist}
 URL: http://www.eclipse.org
 License: EPL-2.0
 
-Source0: http://download.eclipse.org/eclipse/downloads/drops4/%{qualifier}/ecjsrc-%{version}.jar
+Source0: http://download.eclipse.org/eclipse/downloads/drops4/%{qualifier}/ecjsrc-%{version}RC2a.jar
 Source1: https://repo1.maven.org/maven2/org/eclipse/jdt/ecj/3.18.0/ecj-3.18.0.pom
 # Extracted from https://www.eclipse.org/downloads/download.php?file=/eclipse/downloads/drops4/%%{qualifier}/ecj-%%{version}.jar
 Source4: MANIFEST.MF
@@ -73,6 +73,9 @@ install -m 644 -p ecj.1 $RPM_BUILD_ROOT%{_mandir}/man1/ecj.1
 %{_mandir}/man1/ecj*
 
 %changelog
+* Fri Dec 13 2019 Mat Booth <mat.booth@redhat.com> - 1:4.14-1
+- Update to latest upstream version
+
 * Wed Jul 24 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1:4.12-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
 
diff --git a/javaAPI.patch b/javaAPI.patch
index 74da3a9..f1209ac 100644
--- a/javaAPI.patch
+++ b/javaAPI.patch
@@ -1,6 +1,6 @@
 --- build.xml.orig	2018-03-20 15:15:57.063810672 +0000
 +++ build.xml	2018-03-20 15:16:26.018700633 +0000
-@@ -15,16 +15,20 @@
+@@ -18,16 +18,20 @@
  	<property name="output" value="bin" />
  	<property name="jar_file" value="ecj.jar" />
  
diff --git a/sources b/sources
index 5619d50..9983134 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
-SHA512 (ecjsrc-4.12.jar) = 0e5d3ef13d168784965e5215d89462987bd455d28c26f5e494ba6a4d743b9c9c03716ccbd10d8620f7f4eb71c8a28f05b48a1778e24edf59b6a241a0565b4751
-SHA512 (ecj-3.18.0.pom) = 0e17dcd37af1bef9fa1318907012a0bb6e02f573013205dbb3c9f5d93a7d7262a5ae6c24c86570d46ae5317ba57511b68f8d2182feccecc471c68f96bb1485ec
+SHA512 (ecjsrc-4.14RC2a.jar) = bcfbc1d999f0ba89e818fdfc555896e975db8675062bf261b1d626906414dff3ad6734284e8569e3c50ccfdedbf71c6b3c7c0a2005689d93504fc5fe105c4f1a
+SHA512 (ecj-3.20.0.pom) = 634d3992e3bff213e2b9ab9de6d851efc1da3f47bf83c897f5e8ee636068193f0379e073762075a9c35b1c8cf5e7c1a2449b7f6ec72a1c4aed7444f1241e973a
 SHA512 (java10api.jar) = b92faee6a4f7ab3d631e93ed99fffb101035bf7c0dd632dd5322c9e0d2848eeda496d6cf4d28122c88173fb7fcacc77ce40f2822e923903cec47114c9a25c242