diff --git a/pom.xml b/pom.xml
index 15fab51..db4b21c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>io.jsonwebtoken</groupId>
             <artifactId>jjwt</artifactId>
-            <version>0.9.1</version>
+            <version>0.12.5</version>
         </dependency>
         <dependency>
             <groupId>com.mysql</groupId>
diff --git a/src/main/java/com/ons/securitylayerJwt/security/JwtUtilities.java b/src/main/java/com/ons/securitylayerJwt/security/JwtUtilities.java
index 4dd7502..132a818 100644
--- a/src/main/java/com/ons/securitylayerJwt/security/JwtUtilities.java
+++ b/src/main/java/com/ons/securitylayerJwt/security/JwtUtilities.java
@@ -1,8 +1,8 @@
 package com.ons.securitylayerJwt.security;
 
 
-
 import io.jsonwebtoken.*;
+import io.jsonwebtoken.security.Keys;
 import jakarta.servlet.http.HttpServletRequest;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
@@ -19,7 +19,7 @@
 
 @Slf4j
 @Component
-public class JwtUtilities{
+public class JwtUtilities {
 
 
     @Value("${jwt.secret}")
@@ -33,32 +33,48 @@ public String extractUsername(String token) {
         return extractClaim(token, Claims::getSubject);
     }
 
-    public Claims extractAllClaims(String token) {return Jwts.parser().setSigningKey(secret).parseClaimsJws(token).getBody();}
+    public Claims extractAllClaims(String token) {
+        return Jwts.parser()
+                .verifyWith(Keys.hmacShaKeyFor(secret.getBytes()))
+                .build()
+                .parseSignedClaims(token)
+                .getPayload();
+    }
 
     public <T> T extractClaim(String token, Function<Claims, T> claimsResolver) {
         final Claims claims = extractAllClaims(token);
         return claimsResolver.apply(claims);
     }
-    public Date extractExpiration(String token) { return extractClaim(token, Claims::getExpiration); }
+
+    public Date extractExpiration(String token) {
+        return extractClaim(token, Claims::getExpiration);
+    }
 
     public Boolean validateToken(String token, UserDetails userDetails) {
         final String email = extractUsername(token);
         return (email.equals(userDetails.getUsername()) && !isTokenExpired(token));
     }
+
     public Boolean isTokenExpired(String token) {
         return extractExpiration(token).before(new Date());
     }
 
-    public String generateToken(String email , List<String> roles) {
-
-        return Jwts.builder().setSubject(email).claim("role",roles).setIssuedAt(new Date(System.currentTimeMillis()))
-                .setExpiration(Date.from(Instant.now().plus(jwtExpiration, ChronoUnit.MILLIS)))
-                .signWith(SignatureAlgorithm.HS256, secret).compact();
+    public String generateToken(String email, List<String> roles) {
+        return Jwts.builder()
+                .subject(email)
+                .claim("role", roles)
+                .issuedAt(new Date(System.currentTimeMillis()))
+                .expiration(Date.from(Instant.now().plus(jwtExpiration, ChronoUnit.MILLIS)))
+                .signWith(Keys.hmacShaKeyFor(secret.getBytes()))
+                .compact();
     }
 
     public boolean validateToken(String token) {
         try {
-            Jwts.parser().setSigningKey(secret).parseClaimsJws(token);
+            Jwts.parser()
+                    .verifyWith(Keys.hmacShaKeyFor(secret.getBytes()))
+                    .build()
+                    .parseSignedClaims(token);
             return true;
         } catch (SignatureException e) {
             log.info("Invalid JWT signature.");
@@ -79,11 +95,12 @@ public boolean validateToken(String token) {
         return false;
     }
 
-    public String getToken (HttpServletRequest httpServletRequest) {
-         final String bearerToken = httpServletRequest.getHeader("Authorization");
-         if(StringUtils.hasText(bearerToken) && bearerToken.startsWith("Bearer "))
-         {return bearerToken.substring(7,bearerToken.length()); } // The part after "Bearer "
-         return null;
+    public String getToken(HttpServletRequest httpServletRequest) {
+        final String bearerToken = httpServletRequest.getHeader("Authorization");
+        if (StringUtils.hasText(bearerToken) && bearerToken.startsWith("Bearer ")) {
+            return bearerToken.substring(7, bearerToken.length());
+        } // The part after "Bearer "
+        return null;
     }
 
 }