diff --git a/build.gradle.kts b/build.gradle.kts
index 77763d9..edc3a4d 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -32,7 +32,7 @@ dependencies {
 	implementation("org.mariadb.jdbc:mariadb-java-client:3.3.3")
 
 	// GAuth
-	implementation("com.github.GSM-MSG:GAuth-SDK-Java:v2.0.1")
+	implementation("com.github.GSM-MSG:GAuth-SDK-Java:v3.0.0")
 
 	// jwt
 	implementation("io.jsonwebtoken:jjwt-api:0.11.5")
diff --git a/src/main/java/com/mindway/server/v2/domain/auth/service/impl/SignInServiceImpl.java b/src/main/java/com/mindway/server/v2/domain/auth/service/impl/SignInServiceImpl.java
index 3023cb8..b399326 100644
--- a/src/main/java/com/mindway/server/v2/domain/auth/service/impl/SignInServiceImpl.java
+++ b/src/main/java/com/mindway/server/v2/domain/auth/service/impl/SignInServiceImpl.java
@@ -65,11 +65,8 @@ public TokenResponse execute(SignInRequest signInRequest) throws GAuthException{
 
         } catch (GAuthException e) {
             throw new GAuthException(e.getCode());
-        } catch (IOException e) {
-            log.info(e.getMessage());
         }
 
-        return null;
     }
 
     private User saveUser(GAuthUserInfo gAuthUserInfo) {