diff --git a/package-lock.json b/package-lock.json
index 639a1cbd..eaa9e074 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "@accordproject/concerto-codegen",
-    "version": "3.16.0",
+    "version": "3.16.2",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "@accordproject/concerto-codegen",
-            "version": "3.16.0",
+            "version": "3.16.2",
             "license": "Apache-2.0",
             "dependencies": {
                 "@accordproject/concerto-core": "3.12.3",
diff --git a/package.json b/package.json
index d9475aaf..8c57e8db 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@accordproject/concerto-codegen",
-    "version": "3.16.1",
+    "version": "3.16.2",
     "description": "CodeGen for the Concerto Modeling Language",
     "homepage": "https://github.com/accordproject/concerto",
     "engines": {
diff --git a/types/lib/codegen/fromcto/plantuml/plantumlvisitor.d.ts b/types/lib/codegen/fromcto/plantuml/plantumlvisitor.d.ts
index c07983c0..0afba334 100644
--- a/types/lib/codegen/fromcto/plantuml/plantumlvisitor.d.ts
+++ b/types/lib/codegen/fromcto/plantuml/plantumlvisitor.d.ts
@@ -63,7 +63,9 @@ declare class PlantUMLVisitor extends DiagramVisitor {
     /**
      * Escape fully qualified names. We preserve the dots in the
      * package name, remove the '@' symbol because it is invalid
-     * and remove the dots in the version (because otherwise packages get created)
+     * and remove the dots in the version (because otherwise packages get created).
+     * We also replace all '-' characters with '_' because they are invalid in
+     * PlantUML identifiers as '-' can appear in a semver string.
      * @param {String} input - the object being visited
      * @return {String} string  - the parameter
      * @protected