diff --git a/CHANGELOG.md b/CHANGELOG.md
index a67e99388..025ff011e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.14.5](https://github.com/googleapis/java-datastore/compare/v2.14.4...v2.14.5) (2023-04-27)
+
+
+### Bug Fixes
+
+* Using namespace from DatastoreOptions if aggregation query is not configured with one. ([#1055](https://github.com/googleapis/java-datastore/issues/1055)) ([ac21ef6](https://github.com/googleapis/java-datastore/commit/ac21ef6cff5308fb17990a768100d1b2ee4c3654)), closes [#1054](https://github.com/googleapis/java-datastore/issues/1054)
+
 ## [2.14.4](https://github.com/googleapis/java-datastore/compare/v2.14.3...v2.14.4) (2023-04-26)
 
 
diff --git a/README.md b/README.md
index 6b61cb06f..de738f5ac 100644
--- a/README.md
+++ b/README.md
@@ -42,7 +42,7 @@ If you are using Maven without the BOM, add this to your dependencies:
 <dependency>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-datastore</artifactId>
-  <version>2.14.3</version>
+  <version>2.14.4</version>
 </dependency>
 
 ```
@@ -57,13 +57,13 @@ implementation 'com.google.cloud:google-cloud-datastore'
 If you are using Gradle without BOM, add this to your dependencies:
 
 ```Groovy
-implementation 'com.google.cloud:google-cloud-datastore:2.14.3'
+implementation 'com.google.cloud:google-cloud-datastore:2.14.4'
 ```
 
 If you are using SBT, add this to your dependencies:
 
 ```Scala
-libraryDependencies += "com.google.cloud" % "google-cloud-datastore" % "2.14.3"
+libraryDependencies += "com.google.cloud" % "google-cloud-datastore" % "2.14.4"
 ```
 <!-- {x-version-update-end} -->
 
@@ -370,7 +370,7 @@ Java is a registered trademark of Oracle and/or its affiliates.
 [kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/java-datastore/java11.html
 [stability-image]: https://img.shields.io/badge/stability-stable-green
 [maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-datastore.svg
-[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-datastore/2.14.3
+[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-datastore/2.14.4
 [authentication]: https://github.com/googleapis/google-cloud-java#authentication
 [auth-scopes]: https://developers.google.com/identity/protocols/oauth2/scopes
 [predefined-iam-roles]: https://cloud.google.com/iam/docs/understanding-roles#predefined_roles
diff --git a/datastore-v1-proto-client/pom.xml b/datastore-v1-proto-client/pom.xml
index e2dd4f8c8..a9baa799f 100644
--- a/datastore-v1-proto-client/pom.xml
+++ b/datastore-v1-proto-client/pom.xml
@@ -19,12 +19,12 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud.datastore</groupId>
   <artifactId>datastore-v1-proto-client</artifactId>
-  <version>2.14.4</version><!-- {x-version-update:datastore-v1-proto-client:current} -->
+  <version>2.14.5</version><!-- {x-version-update:datastore-v1-proto-client:current} -->
 
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datastore-parent</artifactId>
-    <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+    <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
   </parent>
 
   <packaging>jar</packaging>
diff --git a/google-cloud-datastore-bom/pom.xml b/google-cloud-datastore-bom/pom.xml
index 0a3870c06..817aa3fc2 100644
--- a/google-cloud-datastore-bom/pom.xml
+++ b/google-cloud-datastore-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-datastore-bom</artifactId>
-  <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore-bom:current} -->
+  <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore-bom:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -52,22 +52,22 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-datastore</artifactId>
-        <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+        <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-datastore-admin-v1</artifactId>
-        <version>2.14.4</version><!-- {x-version-update:grpc-google-cloud-datastore-admin-v1:current} -->
+        <version>2.14.5</version><!-- {x-version-update:grpc-google-cloud-datastore-admin-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-datastore-v1</artifactId>
-        <version>0.105.4</version><!-- {x-version-update:proto-google-cloud-datastore-v1:current} -->
+        <version>0.105.5</version><!-- {x-version-update:proto-google-cloud-datastore-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-datastore-admin-v1</artifactId>
-        <version>2.14.4</version><!-- {x-version-update:proto-google-cloud-datastore-admin-v1:current} -->
+        <version>2.14.5</version><!-- {x-version-update:proto-google-cloud-datastore-admin-v1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-datastore/pom.xml b/google-cloud-datastore/pom.xml
index 9727c3f75..57c8aad65 100644
--- a/google-cloud-datastore/pom.xml
+++ b/google-cloud-datastore/pom.xml
@@ -2,7 +2,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0%20http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <artifactId>google-cloud-datastore</artifactId>
-  <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+  <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Datastore</name>
   <url>https://github.com/googleapis/java-datastore</url>
@@ -12,7 +12,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datastore-parent</artifactId>
-    <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+    <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-datastore</site.installationModule>
diff --git a/google-cloud-datastore/src/main/java/com/google/cloud/datastore/execution/request/AggregationQueryRequestProtoPreparer.java b/google-cloud-datastore/src/main/java/com/google/cloud/datastore/execution/request/AggregationQueryRequestProtoPreparer.java
index b5da8d9fe..8f4e51d6e 100644
--- a/google-cloud-datastore/src/main/java/com/google/cloud/datastore/execution/request/AggregationQueryRequestProtoPreparer.java
+++ b/google-cloud-datastore/src/main/java/com/google/cloud/datastore/execution/request/AggregationQueryRequestProtoPreparer.java
@@ -26,6 +26,7 @@
 import com.google.cloud.datastore.ReadOptionProtoPreparer;
 import com.google.cloud.datastore.StructuredQueryProtoPreparer;
 import com.google.cloud.datastore.aggregation.Aggregation;
+import com.google.common.base.MoreObjects;
 import com.google.datastore.v1.GqlQuery;
 import com.google.datastore.v1.PartitionId;
 import com.google.datastore.v1.Query;
@@ -92,9 +93,9 @@ private com.google.datastore.v1.AggregationQuery getAggregationQuery(
   private PartitionId getPartitionId(AggregationQuery aggregationQuery) {
     PartitionId.Builder builder =
         PartitionId.newBuilder().setProjectId(datastoreOptions.getProjectId());
-    if (aggregationQuery.getNamespace() != null) {
-      builder.setNamespaceId(aggregationQuery.getNamespace());
-    }
+    String namespace =
+        MoreObjects.firstNonNull(aggregationQuery.getNamespace(), datastoreOptions.getNamespace());
+    builder.setNamespaceId(namespace);
     return builder.build();
   }
 }
diff --git a/google-cloud-datastore/src/test/java/com/google/cloud/datastore/execution/request/AggregationQueryRequestProtoPreparerTest.java b/google-cloud-datastore/src/test/java/com/google/cloud/datastore/execution/request/AggregationQueryRequestProtoPreparerTest.java
index 6301ebeff..934e3a4c7 100644
--- a/google-cloud-datastore/src/test/java/com/google/cloud/datastore/execution/request/AggregationQueryRequestProtoPreparerTest.java
+++ b/google-cloud-datastore/src/test/java/com/google/cloud/datastore/execution/request/AggregationQueryRequestProtoPreparerTest.java
@@ -154,7 +154,7 @@ public void shouldPrepareReadOptionsWithGivenGqlQuery() {
   }
 
   @Test
-  public void shouldPrepareAggregationQueryWithoutNamespace() {
+  public void shouldPrepareAggregationQueryWithNamespaceFromDatastoreOptions() {
     AggregationQuery structuredQueryWithoutNamespace =
         Query.newAggregationQueryBuilder()
             .addAggregation(count().as("total"))
@@ -169,8 +169,9 @@ public void shouldPrepareAggregationQueryWithoutNamespace() {
         protoPreparer.prepare(QueryAndReadOptions.create(gqlQueryWithoutNamespace));
 
     assertThat(runAggregationQueryFromStructuredQuery.getPartitionId().getNamespaceId())
-        .isEqualTo("");
-    assertThat(runAggregationQueryFromGqlQuery.getPartitionId().getNamespaceId()).isEqualTo("");
+        .isEqualTo(NAMESPACE);
+    assertThat(runAggregationQueryFromGqlQuery.getPartitionId().getNamespaceId())
+        .isEqualTo(NAMESPACE);
   }
 
   private RunAggregationQueryRequest prepareQuery(AggregationQuery query, ReadOption readOption) {
diff --git a/grpc-google-cloud-datastore-admin-v1/pom.xml b/grpc-google-cloud-datastore-admin-v1/pom.xml
index 8ef18c2d1..cb7a0f106 100644
--- a/grpc-google-cloud-datastore-admin-v1/pom.xml
+++ b/grpc-google-cloud-datastore-admin-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-datastore-admin-v1</artifactId>
-  <version>2.14.4</version><!-- {x-version-update:grpc-google-cloud-datastore-admin-v1:current} -->
+  <version>2.14.5</version><!-- {x-version-update:grpc-google-cloud-datastore-admin-v1:current} -->
   <name>grpc-google-cloud-datastore-admin-v1</name>
   <description>GRPC library for google-cloud-datastore</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datastore-parent</artifactId>
-    <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+    <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 1239c79e4..8d79f932e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-datastore-parent</artifactId>
   <packaging>pom</packaging>
-  <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+  <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
   <name>Google Cloud Datastore Parent</name>
   <url>https://github.com/googleapis/java-datastore</url>
   <description>
@@ -159,27 +159,27 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-datastore-admin-v1</artifactId>
-        <version>2.14.4</version><!-- {x-version-update:proto-google-cloud-datastore-admin-v1:current} -->
+        <version>2.14.5</version><!-- {x-version-update:proto-google-cloud-datastore-admin-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-datastore-admin-v1</artifactId>
-        <version>2.14.4</version><!-- {x-version-update:grpc-google-cloud-datastore-admin-v1:current} -->
+        <version>2.14.5</version><!-- {x-version-update:grpc-google-cloud-datastore-admin-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-datastore</artifactId>
-        <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+        <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-datastore-v1</artifactId>
-        <version>0.105.4</version><!-- {x-version-update:proto-google-cloud-datastore-v1:current} -->
+        <version>0.105.5</version><!-- {x-version-update:proto-google-cloud-datastore-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud.datastore</groupId>
         <artifactId>datastore-v1-proto-client</artifactId>
-        <version>2.14.4</version><!-- {x-version-update:datastore-v1-proto-client:current} -->
+        <version>2.14.5</version><!-- {x-version-update:datastore-v1-proto-client:current} -->
         <exclusions>
           <exclusion>
             <groupId>com.google.api.grpc</groupId>
diff --git a/proto-google-cloud-datastore-admin-v1/pom.xml b/proto-google-cloud-datastore-admin-v1/pom.xml
index 2a7e48bed..d8068d89a 100644
--- a/proto-google-cloud-datastore-admin-v1/pom.xml
+++ b/proto-google-cloud-datastore-admin-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-datastore-admin-v1</artifactId>
-  <version>2.14.4</version><!-- {x-version-update:proto-google-cloud-datastore-admin-v1:current} -->
+  <version>2.14.5</version><!-- {x-version-update:proto-google-cloud-datastore-admin-v1:current} -->
   <name>proto-google-cloud-datastore-admin-v1</name>
   <description>Proto library for google-cloud-datastore</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datastore-parent</artifactId>
-    <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+    <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/proto-google-cloud-datastore-v1/pom.xml b/proto-google-cloud-datastore-v1/pom.xml
index 442dea975..8d4fd2ea8 100644
--- a/proto-google-cloud-datastore-v1/pom.xml
+++ b/proto-google-cloud-datastore-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-datastore-v1</artifactId>
-  <version>0.105.4</version><!-- {x-version-update:proto-google-cloud-datastore-v1:current} -->
+  <version>0.105.5</version><!-- {x-version-update:proto-google-cloud-datastore-v1:current} -->
   <name>proto-google-cloud-datastore-v1</name>
   <description>PROTO library for proto-google-cloud-datastore-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datastore-parent</artifactId>
-    <version>2.14.4</version><!-- {x-version-update:google-cloud-datastore:current} -->
+    <version>2.14.5</version><!-- {x-version-update:google-cloud-datastore:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/samples/install-without-bom/pom.xml b/samples/install-without-bom/pom.xml
index f2714fa75..60c4f8c4c 100644
--- a/samples/install-without-bom/pom.xml
+++ b/samples/install-without-bom/pom.xml
@@ -29,7 +29,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-datastore</artifactId>
-      <version>2.14.3</version>
+      <version>2.14.4</version>
     </dependency>
     <!-- [END datastore_install_without_bom] -->
 
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index 21bcd42bd..f9a103611 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-datastore</artifactId>
-      <version>2.14.3</version>
+      <version>2.14.4</version>
     </dependency>
 
     <dependency>
diff --git a/versions.txt b/versions.txt
index 92b496b15..e16e306bb 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,9 +1,9 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-datastore:2.14.4:2.14.4
-google-cloud-datastore-bom:2.14.4:2.14.4
-proto-google-cloud-datastore-v1:0.105.4:0.105.4
-datastore-v1-proto-client:2.14.4:2.14.4
-proto-google-cloud-datastore-admin-v1:2.14.4:2.14.4
-grpc-google-cloud-datastore-admin-v1:2.14.4:2.14.4
+google-cloud-datastore:2.14.5:2.14.5
+google-cloud-datastore-bom:2.14.5:2.14.5
+proto-google-cloud-datastore-v1:0.105.5:0.105.5
+datastore-v1-proto-client:2.14.5:2.14.5
+proto-google-cloud-datastore-admin-v1:2.14.5:2.14.5
+grpc-google-cloud-datastore-admin-v1:2.14.5:2.14.5