diff --git a/src/main/java/net/gepafin/tendermanagement/entities/UserActionEntity.java b/src/main/java/net/gepafin/tendermanagement/entities/UserActionEntity.java
index 8e1ddd7b..6f85f6ef 100644
--- a/src/main/java/net/gepafin/tendermanagement/entities/UserActionEntity.java
+++ b/src/main/java/net/gepafin/tendermanagement/entities/UserActionEntity.java
@@ -40,7 +40,7 @@ public class UserActionEntity extends BaseEntity {
     @Column(name = "RESPONSE")
     private String response;
 
-    @Column(name = "IS_DELETED")
-    private String isDeleted;
+    @Column(name = "IS_DELETED", nullable = false)
+    private Boolean isDeleted = false;
 
 }
\ No newline at end of file
diff --git a/src/main/java/net/gepafin/tendermanagement/entities/VersionHistoryEntity.java b/src/main/java/net/gepafin/tendermanagement/entities/VersionHistoryEntity.java
index af925f38..2445fb44 100644
--- a/src/main/java/net/gepafin/tendermanagement/entities/VersionHistoryEntity.java
+++ b/src/main/java/net/gepafin/tendermanagement/entities/VersionHistoryEntity.java
@@ -31,6 +31,6 @@ public class VersionHistoryEntity extends BaseEntity {
     @Column(name = "USER_ID")
     private Long userId;
 
-    @Column(name = "IS_DELETED")
-    private String isDeleted;
+    @Column(name = "IS_DELETED", nullable = false)
+    private Boolean isDeleted = false;
 }