diff --git a/application/src/main/java/run/halo/app/core/extension/endpoint/StatsEndpoint.java b/application/src/main/java/run/halo/app/core/extension/endpoint/StatsEndpoint.java
index c00e53062fe..2102d0bb4d9 100644
--- a/application/src/main/java/run/halo/app/core/extension/endpoint/StatsEndpoint.java
+++ b/application/src/main/java/run/halo/app/core/extension/endpoint/StatsEndpoint.java
@@ -4,6 +4,7 @@
 import static org.springdoc.core.fn.builders.apiresponse.Builder.responseBuilder;
 import static run.halo.app.extension.index.query.QueryFactory.and;
 import static run.halo.app.extension.index.query.QueryFactory.equal;
+import static run.halo.app.extension.index.query.QueryFactory.isNull;
 
 import lombok.Data;
 import org.springdoc.webflux.core.fn.SpringdocRouteBuilder;
@@ -75,7 +76,7 @@ Mono<ServerResponse> getStats(ServerRequest request) {
             .flatMap(stats -> {
                 var listOptions = new ListOptions();
                 listOptions.setFieldSelector(FieldSelector.of(
-                    and(equal("metadata.deletionTimestamp", null),
+                    and(isNull("metadata.deletionTimestamp"),
                         equal("spec.deleted", "false")))
                 );
                 return client.listBy(Post.class, listOptions, PageRequestImpl.ofSize(1))
diff --git a/application/src/main/java/run/halo/app/core/extension/reconciler/CategoryReconciler.java b/application/src/main/java/run/halo/app/core/extension/reconciler/CategoryReconciler.java
index 48935c569c4..bcee3e310cb 100644
--- a/application/src/main/java/run/halo/app/core/extension/reconciler/CategoryReconciler.java
+++ b/application/src/main/java/run/halo/app/core/extension/reconciler/CategoryReconciler.java
@@ -2,6 +2,7 @@
 
 import static run.halo.app.extension.index.query.QueryFactory.and;
 import static run.halo.app.extension.index.query.QueryFactory.equal;
+import static run.halo.app.extension.index.query.QueryFactory.isNull;
 
 import java.time.Duration;
 import java.util.ArrayDeque;
@@ -146,7 +147,7 @@ private void populatePosts(Category category) {
 
         var postListOptions = new ListOptions();
         postListOptions.setFieldSelector(FieldSelector.of(
-            and(equal("metadata.deletionTimestamp", null),
+            and(isNull("metadata.deletionTimestamp"),
                 equal("spec.deleted", "false")))
         );
         var posts = client.listAll(Post.class, postListOptions, Sort.unsorted());
diff --git a/application/src/main/java/run/halo/app/theme/finders/impl/SiteStatsFinderImpl.java b/application/src/main/java/run/halo/app/theme/finders/impl/SiteStatsFinderImpl.java
index 52f2d027944..2966f6a6263 100644
--- a/application/src/main/java/run/halo/app/theme/finders/impl/SiteStatsFinderImpl.java
+++ b/application/src/main/java/run/halo/app/theme/finders/impl/SiteStatsFinderImpl.java
@@ -2,6 +2,7 @@
 
 import static run.halo.app.extension.index.query.QueryFactory.and;
 import static run.halo.app.extension.index.query.QueryFactory.equal;
+import static run.halo.app.extension.index.query.QueryFactory.isNull;
 
 import lombok.AllArgsConstructor;
 import reactor.core.publisher.Mono;
@@ -52,7 +53,7 @@ Mono<Integer> postCount() {
             .eq(Post.PUBLISHED_LABEL, "true")
             .build());
         var fieldQuery = and(
-            equal("metadata.deletionTimestamp", null),
+            isNull("metadata.deletionTimestamp"),
             equal("spec.deleted", "false")
         );
         listOptions.setFieldSelector(FieldSelector.of(fieldQuery));
diff --git a/application/src/main/java/run/halo/app/theme/router/DefaultQueryPostPredicateResolver.java b/application/src/main/java/run/halo/app/theme/router/DefaultQueryPostPredicateResolver.java
index cf6e8690cef..d86a393a9b8 100644
--- a/application/src/main/java/run/halo/app/theme/router/DefaultQueryPostPredicateResolver.java
+++ b/application/src/main/java/run/halo/app/theme/router/DefaultQueryPostPredicateResolver.java
@@ -2,6 +2,7 @@
 
 import static run.halo.app.extension.index.query.QueryFactory.and;
 import static run.halo.app.extension.index.query.QueryFactory.equal;
+import static run.halo.app.extension.index.query.QueryFactory.isNull;
 import static run.halo.app.extension.index.query.QueryFactory.or;
 
 import java.security.Principal;
@@ -48,7 +49,7 @@ public Mono<ListOptions> getListOptions() {
             .eq(Post.PUBLISHED_LABEL, "true").build());
 
         var fieldQuery = and(
-            equal("metadata.deletionTimestamp", null),
+            isNull("metadata.deletionTimestamp"),
             equal("spec.deleted", "false")
         );
         var visibleQuery = equal("spec.visible", Post.VisibleEnum.PUBLIC.name());