diff --git a/application/src/main/java/org/thingsboard/server/service/cf/ctx/state/SingleValueArgumentEntry.java b/application/src/main/java/org/thingsboard/server/service/cf/ctx/state/SingleValueArgumentEntry.java
index 3b858e81b2..1585c9b2a9 100644
--- a/application/src/main/java/org/thingsboard/server/service/cf/ctx/state/SingleValueArgumentEntry.java
+++ b/application/src/main/java/org/thingsboard/server/service/cf/ctx/state/SingleValueArgumentEntry.java
@@ -107,7 +107,7 @@ public class SingleValueArgumentEntry implements ArgumentEntry {
     @Override
     public boolean updateEntry(ArgumentEntry entry) {
         if (entry instanceof SingleValueArgumentEntry singleValueEntry) {
-            if (singleValueEntry.getTs() == this.ts) {
+            if (singleValueEntry.getTs() <= this.ts) {
                 return false;
             }
 
diff --git a/application/src/test/java/org/thingsboard/server/cf/CalculatedFieldIntegrationTest.java b/application/src/test/java/org/thingsboard/server/cf/CalculatedFieldIntegrationTest.java
index 8214a03616..c8b8b0244b 100644
--- a/application/src/test/java/org/thingsboard/server/cf/CalculatedFieldIntegrationTest.java
+++ b/application/src/test/java/org/thingsboard/server/cf/CalculatedFieldIntegrationTest.java
@@ -555,7 +555,7 @@ public class CalculatedFieldIntegrationTest extends CalculatedFieldControllerTes
                 });
 
         long tsABeforeTsB = tsB - 300L;
-        doPost("/api/plugins/telemetry/DEVICE/" + testDevice.getUuidId() + "/timeseries/" + DataConstants.SERVER_SCOPE, JacksonUtil.toJsonNode(String.format("{\"ts\": %s, \"values\": {\"b\":10}}", tsABeforeTsB)));
+        doPost("/api/plugins/telemetry/DEVICE/" + testDevice.getUuidId() + "/timeseries/" + DataConstants.SERVER_SCOPE, JacksonUtil.toJsonNode(String.format("{\"ts\": %s, \"values\": {\"a\":10}}", tsABeforeTsB)));
 
         await().alias("update telemetry with ts less than latest -> save result with latest ts").atMost(TIMEOUT, TimeUnit.SECONDS)
                 .pollInterval(POLL_INTERVAL, TimeUnit.SECONDS)
@@ -563,7 +563,7 @@ public class CalculatedFieldIntegrationTest extends CalculatedFieldControllerTes
                     ObjectNode c = getLatestTelemetry(testDevice.getId(), "c");
                     assertThat(c).isNotNull();
                     assertThat(c.get("c").get(0).get("ts").asText()).isEqualTo(Long.toString(tsB));// also tsB, since this is the latest timestamp
-                    assertThat(c.get("c").get(0).get("value").asText()).isEqualTo("11.0");
+                    assertThat(c.get("c").get(0).get("value").asText()).isEqualTo("15.0");
                 });
     }
 
diff --git a/application/src/test/java/org/thingsboard/server/service/cf/ctx/state/SingleValueArgumentEntryTest.java b/application/src/test/java/org/thingsboard/server/service/cf/ctx/state/SingleValueArgumentEntryTest.java
index 50cac8a6fe..5ea3808468 100644
--- a/application/src/test/java/org/thingsboard/server/service/cf/ctx/state/SingleValueArgumentEntryTest.java
+++ b/application/src/test/java/org/thingsboard/server/service/cf/ctx/state/SingleValueArgumentEntryTest.java
@@ -53,7 +53,7 @@ public class SingleValueArgumentEntryTest {
     }
 
     @Test
-    void testUpdateEntryWithThaSameTs() {
+    void testUpdateEntryWithTheSameTs() {
         assertThat(entry.updateEntry(new SingleValueArgumentEntry(ts, new LongDataEntry("key", 13L), 363L))).isFalse();
     }
 
@@ -81,6 +81,11 @@ public class SingleValueArgumentEntryTest {
         assertThat(entry.updateEntry(new SingleValueArgumentEntry(ts + 18, new LongDataEntry("key", 11L), 364L))).isTrue();
     }
 
+    @Test
+    void testUpdateEntryWithOldTs() {
+        assertThat(entry.updateEntry(new SingleValueArgumentEntry(ts - 10, new LongDataEntry("key", 14L), 365L))).isFalse();
+    }
+
     @Test
     void testToTbelCfArgWhenJsonIsObject() {
         entry = new SingleValueArgumentEntry(ts, new JsonDataEntry("key", "{\"test\": 10}"), 370L);