diff --git a/hbase-migration-tools/mirroring-client/pom.xml b/hbase-migration-tools/mirroring-client/pom.xml
index 4bfe5abfb4..7ba32f0444 100644
--- a/hbase-migration-tools/mirroring-client/pom.xml
+++ b/hbase-migration-tools/mirroring-client/pom.xml
@@ -18,7 +18,7 @@
     <shading-prefix-path>com/google/bigtable/hbase/mirroring/shaded</shading-prefix-path>
 
     <!-- TODO: upgrade mirroring clients to latest hbase -->
-    <hbase2.version>2.3.6</hbase2.version>
+    <hbase2.version>2.6.6-hadoop3</hbase2.version>
   </properties>
 
   <modules>
diff --git a/pom.xml b/pom.xml
index 53f3ea91c4..1f88b60203 100644
--- a/pom.xml
+++ b/pom.xml
@@ -66,7 +66,7 @@ limitations under the License.
 
     <!-- hbase dependency versions -->
     <hbase1.version>1.7.2</hbase1.version>
-    <hbase2.version>2.6.4-hadoop3</hbase2.version>
+    <hbase2.version>2.6.6-hadoop3</hbase2.version>
     <hbase2-testing-util-mockito.version>2.28.2</hbase2-testing-util-mockito.version>
 
     <!-- bytebuddy dependency version for resolving hbase backward incompatible changes -->