diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd3320dc..4781f63d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,5 @@
 # Changelog
 
-## 3.2.3.8
-- Remove ATLauncher from the classpath when launching Minecraft
+## 3.2.3.9
+- Fix issues installing some libraries on OSX
 
diff --git a/pom.xml b/pom.xml
index dee504ea..1b0b8cd4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
     <groupId>com.atlauncher</groupId>
     <artifactId>atlauncher</artifactId>
     <name>ATLauncher</name>
-    <version>3.2.3.8</version>
+    <version>3.2.3.9</version>
     <organization>
         <name>ATLauncher</name>
         <url>http://www.github.com/ATLauncher/</url>
diff --git a/src/main/java/com/atlauncher/data/Constants.java b/src/main/java/com/atlauncher/data/Constants.java
index 4e61280c..99c777e3 100644
--- a/src/main/java/com/atlauncher/data/Constants.java
+++ b/src/main/java/com/atlauncher/data/Constants.java
@@ -18,7 +18,7 @@
 package com.atlauncher.data;
 
 public class Constants {
-    public static final LauncherVersion VERSION = new LauncherVersion(3, 2, 3, 8);
+    public static final LauncherVersion VERSION = new LauncherVersion(3, 2, 3, 9);
     public static final String LAUNCHER_NAME = "ATLauncher";
     public static final String API_BASE_URL = "https://api.atlauncher.com/v1/launcher/";
     public static final String PASTE_CHECK_URL = "http://paste.atlauncher.com";
diff --git a/src/main/java/com/atlauncher/data/mojang/Library.java b/src/main/java/com/atlauncher/data/mojang/Library.java
index e3045427..20989209 100644
--- a/src/main/java/com/atlauncher/data/mojang/Library.java
+++ b/src/main/java/com/atlauncher/data/mojang/Library.java
@@ -71,7 +71,7 @@ public class Library {
     }
 
     public String getClassifier() {
-        if (this.natives == null) {
+        if (this.natives == null || !this.natives.containsKey(OperatingSystem.getOS())) {
             return "";
         }
         return "-" + this.natives.get(OperatingSystem.getOS()).replace("${arch}", Utils.getArch());