diff --git a/CHANGELOG.md b/CHANGELOG.md
index 502b846..7d63a5c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,16 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [v3.7.3] - 2024-09-27
+
+### Fixed
+
+-   Fixed bug that allowed some systems to have zero mass on very small ships.
+
+### Changed
+
+- Odd mass values are now permitted.
+
 ## [v3.7.2] - 2024-09-26
 
 ### Fixed
diff --git a/package-lock.json b/package-lock.json
index 7e87296..3018592 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,18 +1,18 @@
 {
     "name": "ftshipbuilder",
-    "version": "3.7.0",
+    "version": "3.7.2",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "ftshipbuilder",
-            "version": "3.7.0",
+            "version": "3.7.2",
             "license": "MIT",
             "dependencies": {
                 "@zerodevx/svelte-toast": "^0.9.3",
                 "canvg": "^4.0.1",
                 "fast-xml-parser": "^4.2.0",
-                "ftlibship": "github:perlkonig/ftlibship#v2.4.1",
+                "ftlibship": "github:perlkonig/ftLibShip#v2.4.2",
                 "lz-string": "^1.5.0",
                 "nanoid": "^4.0.2",
                 "robust-point-in-polygon": "^1.0.3",
@@ -1057,9 +1057,9 @@
             }
         },
         "node_modules/fast-uri": {
-            "version": "3.0.1",
-            "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.0.1.tgz",
-            "integrity": "sha512-MWipKbbYiYI0UC7cl8m/i/IWTqfC8YXsqjzybjddLsFjStroQzsHXkc73JutMvBiXmOvapk+axIl79ig5t55Bw=="
+            "version": "3.0.2",
+            "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.0.2.tgz",
+            "integrity": "sha512-GR6f0hD7XXyNJa25Tb9BuIdN0tdr+0BMi6/CJPH3wJO1JjNG3n/VsSw38AwRdKZABm8lGbPfakLRkYzx2V9row=="
         },
         "node_modules/fast-xml-parser": {
             "version": "4.2.0",
@@ -1148,8 +1148,8 @@
             }
         },
         "node_modules/ftlibship": {
-            "version": "2.4.1",
-            "resolved": "git+ssh://git@github.com/perlkonig/ftlibship.git#470fdee9f48af077ca583fa022adf2f98d42bd6a",
+            "version": "2.4.2",
+            "resolved": "git+ssh://git@github.com/perlkonig/ftLibShip.git#f7e60800eb5d8f693c08624f065b89bc51c83de3",
             "license": "MIT",
             "dependencies": {
                 "ajv": "^8.12.0",
diff --git a/package.json b/package.json
index 09c0bb3..ce4fa76 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "ftshipbuilder",
     "private": true,
-    "version": "3.7.2",
+    "version": "3.7.3",
     "description": "A web-based tool for generating valid Full Thrust ships",
     "author": "Aaron Dalton <aaron@daltons.ca> (https://www.perlkonig.com)",
     "license": "MIT",
@@ -43,7 +43,7 @@
         "@zerodevx/svelte-toast": "^0.9.3",
         "canvg": "^4.0.1",
         "fast-xml-parser": "^4.2.0",
-        "ftlibship": "github:perlkonig/ftlibship#v2.4.1",
+        "ftlibship": "github:perlkonig/ftLibShip#v2.4.2",
         "lz-string": "^1.5.0",
         "nanoid": "^4.0.2",
         "robust-point-in-polygon": "^1.0.3",
diff --git a/src/components/Builder.svelte b/src/components/Builder.svelte
index 7e2c266..5f0f1b9 100644
--- a/src/components/Builder.svelte
+++ b/src/components/Builder.svelte
@@ -321,7 +321,6 @@
                         placeholder="Mass"
                         min="4"
                         max="300"
-                        step="2"
                         bind:value="{$ship.mass}"
                         on:change="{setClass}"
                     />
@@ -330,10 +329,6 @@
                     <p class="help is-danger">The minimum mass is 4.</p>
                 {:else if $ship.mass > 300}
                     <p class="help is-danger">The maximum mass is 300.</p>
-                {:else if $ship.mass > 10 && $ship.mass % 2 !== 0}
-                    <p class="help is-danger">
-                        The mass of ships larger than 9 must be an even number.
-                    </p>
                 {/if}
             </div>