diff --git a/source/src/main/java/one/nem/lacerta/source/database/entity/VcsRevEntity.java b/source/src/main/java/one/nem/lacerta/source/database/entity/VcsRevEntity.java
index e4379f9c..8105f37b 100644
--- a/source/src/main/java/one/nem/lacerta/source/database/entity/VcsRevEntity.java
+++ b/source/src/main/java/one/nem/lacerta/source/database/entity/VcsRevEntity.java
@@ -3,10 +3,15 @@ package one.nem.lacerta.source.database.entity;
 import androidx.room.ColumnInfo;
 import androidx.room.Entity;
 import androidx.room.PrimaryKey;
+import androidx.room.TypeConverters;
 
+import java.util.Date;
 import java.util.List;
 
+import one.nem.lacerta.source.database.common.DateTypeConverter;
+
 @Entity(tableName = "vcs_rev")
+@TypeConverters({DateTypeConverter.class})
 public class VcsRevEntity {
 
     /**
@@ -37,8 +42,8 @@ public class VcsRevEntity {
     /**
      * コミット日時
      */
-    @ColumnInfo(name = "commit_date")
-    public String commitDate;
+    @ColumnInfo(name = "created_at")
+    public Date createdAt;
 
     /**
      * 含まれるLogのID