diff --git a/src/main/java/org/auioc/mcmod/arnicalib/base/version/HVersion.java b/src/main/java/org/auioc/mcmod/arnicalib/base/version/HVersion.java
index 3db54efe..7bda226b 100644
--- a/src/main/java/org/auioc/mcmod/arnicalib/base/version/HVersion.java
+++ b/src/main/java/org/auioc/mcmod/arnicalib/base/version/HVersion.java
@@ -14,15 +14,6 @@ public class HVersion {
     public final boolean isDirty;
     public final boolean isDev;
 
-    public HVersion(String main, String full) {
-        this.main = main;
-        this.full = full;
-        this.revisionHash = getRevisionHash(full);
-        this.buildNumber = getBuildNumber(full);
-        this.isDev = full.contains("-dev-");
-        this.isDirty = full.contains("-dirty");
-    }
-
     public HVersion(String main, String full, String revisionHash, int buildNumber, boolean isDirty, boolean isDev) {
         this.main = main;
         this.full = full;
@@ -32,16 +23,28 @@ public HVersion(String main, String full, String revisionHash, int buildNumber,
         this.isDev = isDev;
     }
 
+    public HVersion(String main, String full) {
+        this(
+            main, full,
+            getRevisionHash(full),
+            getBuildNumber(full),
+            full.contains("-dirty"),
+            full.contains("-dev-")
+        );
+    }
+
     @Override
     public boolean equals(Object obj) {
         if (this == obj) return true;
-        if (obj instanceof HVersion other) return main.equals(other.main) && full.equals(other.full);
+        if (obj instanceof HVersion other) {
+            return this.main.equals(other.main) && this.full.equals(other.full);
+        }
         return false;
     }
 
     @Override
     public int hashCode() {
-        return main.hashCode() + full.hashCode();
+        return 31 * this.main.hashCode() + this.full.hashCode();
     }
 
     // ====================================================================== //
@@ -49,10 +52,9 @@ public int hashCode() {
     private static final Pattern PATTERN_REVISION_HASH = Pattern.compile("(?<=rev\\.)[0-9a-fA-F]{7}");
     private static final Pattern PATTERN_BUILD_NUMBER = Pattern.compile("(?<=build\\.)\\d+");
 
-
     private static String getRevisionHash(String fullVersion) {
         Matcher matcher = PATTERN_REVISION_HASH.matcher(fullVersion);
-        return (matcher.find()) ? matcher.group() : "";
+        return (matcher.find()) ? matcher.group().toLowerCase() : "";
     }
 
     private static int getBuildNumber(String fullVersion) {