diff --git a/src/main/java/neatlogic/framework/dao/cache/NeatLogicCache.java b/src/main/java/neatlogic/framework/dao/cache/NeatLogicCache.java
index a5884d0b34bef8bd61eb372b635d3c1b8af0bb85..233eab2adc78c0877d1886d88f98e4ef974408ee 100644
--- a/src/main/java/neatlogic/framework/dao/cache/NeatLogicCache.java
+++ b/src/main/java/neatlogic/framework/dao/cache/NeatLogicCache.java
@@ -126,7 +126,11 @@ public class NeatLogicCache implements Cache {
         if (value instanceof List && ((List<?>) value).isEmpty()) {
             return;
         }
-        getCache().put(key, value);
+        if (!this.readOnly) {
+            getCache().put(key, CacheUtils.deepCopy(value));
+        } else {
+            getCache().put(key, value);
+        }
     }
 
     @Override
@@ -162,4 +166,4 @@ public class NeatLogicCache implements Cache {
     public String toString() {
         return "Ehcache3 {" + id + "}";
     }
-}
\ No newline at end of file
+}
diff --git a/src/main/java/neatlogic/framework/dao/cache/NeatLogicConcurrentSafeCache.java b/src/main/java/neatlogic/framework/dao/cache/NeatLogicConcurrentSafeCache.java
index e9826018e1507b1ea908e38c09c56d3213986a85..e51fb36578d83d66d1845f938601cc66146ee3f4 100644
--- a/src/main/java/neatlogic/framework/dao/cache/NeatLogicConcurrentSafeCache.java
+++ b/src/main/java/neatlogic/framework/dao/cache/NeatLogicConcurrentSafeCache.java
@@ -183,7 +183,11 @@ public class NeatLogicConcurrentSafeCache implements Cache {
     @Override
     public void putObject(Object key, Object value) {
         if (value != null) {
-            getCache().put(key, value);
+            if (!this.readOnly) {
+                getCache().put(key, CacheUtils.deepCopy(value));
+            } else {
+                getCache().put(key, value);
+            }
         }
         String lockKey = generateLockKey(getId(), key);
         ReentrantLock lock = LOCAL_LOCK_MAP.get(lockKey);