diff --git a/nC.bat b/nC.bat
index b4ca7743..85d95f58 100755
--- a/nC.bat
+++ b/nC.bat
@@ -21,7 +21,7 @@ set NC_MAX_MEMORY=500M
 
 set NC_VERSION=1.7.4
 
-set JNEUROML_VERSION=0.12.4
+set JNEUROML_VERSION=0.13.0
 
 REM -----------------------------
 REM   Should no longer be changed. **Very old version** of lems/nml libs...
diff --git a/nCenv.sh b/nCenv.sh
index d74b7c6e..25c21270 100755
--- a/nCenv.sh
+++ b/nCenv.sh
@@ -21,7 +21,7 @@ export NC_MAX_MEMORY=450M
 # Current version of neuroConstruct
 export NC_VERSION=1.7.4
 
-export JNEUROML_VERSION=0.12.4
+export JNEUROML_VERSION=0.13.0
 
 #########
 # These are for **very old versions** of NML2/LEMS libraries...
diff --git a/nbproj/nbproject/project.xml b/nbproj/nbproject/project.xml
index caa3782c..23a68183 100644
--- a/nbproj/nbproject/project.xml
+++ b/nbproj/nbproject/project.xml
@@ -12,7 +12,7 @@
                 <property name="project.dir">..</property>
                 <property name="ant.script">${project.dir}/build.xml</property>
                 <property name="nC.version">1.7.4</property>
-                <property name="jneuroml.version">0.12.4</property>
+                <property name="jneuroml.version">0.13.0</property>
             </properties>
             <folders>
                 <source-folder>
diff --git a/src/ucl/physiol/neuroconstruct/neuroml/NeuroMLConstants.java b/src/ucl/physiol/neuroconstruct/neuroml/NeuroMLConstants.java
index e87a732f..e1e98531 100755
--- a/src/ucl/physiol/neuroconstruct/neuroml/NeuroMLConstants.java
+++ b/src/ucl/physiol/neuroconstruct/neuroml/NeuroMLConstants.java
@@ -172,11 +172,19 @@ public String toString()
             {
                 return "2.3";
             }
+        },
+        NEUROML_VERSION_2_3_1
+        {
+            @Override
+            public String toString()
+            {
+                return "2.3.1";
+            }
         };
 
         public static NeuroMLVersion getLatestVersion()
         {
-            return NEUROML_VERSION_2_3;
+            return NEUROML_VERSION_2_3_1;
         }
 
         public boolean isVersion2()