diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bc0659564e..bf10f6522e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,6 +33,7 @@ jobs:
           -x spotlessCheck
           -x checkstyleMain
           -x checkstyleTest
+          -x spotbugsMain
 
     - name: Coverage
       uses: codecov/codecov-action@v1
diff --git a/build.gradle b/build.gradle
index ffe57b404e..c790224cd7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -52,6 +52,7 @@ plugins {
     id 'checkstyle'
     id 'nebula.ospackage'  version "8.3.0"
     id "org.gradle.test-retry" version "1.3.1"
+    id "com.github.spotbugs" version "5.0.13"
 }
 
 allprojects {
@@ -72,6 +73,14 @@ spotless {
   }
 }
 
+spotbugs {
+    includeFilter = file('spotbugs-include.xml')
+}
+
+spotbugsTest {
+    enabled = false
+}
+
 java.sourceCompatibility = JavaVersion.VERSION_11
 java.targetCompatibility = JavaVersion.VERSION_11
 
diff --git a/src/test/java/org/opensearch/security/IntegrationTests.java b/src/test/java/org/opensearch/security/IntegrationTests.java
index 246fca03d9..226551a5ae 100644
--- a/src/test/java/org/opensearch/security/IntegrationTests.java
+++ b/src/test/java/org/opensearch/security/IntegrationTests.java
@@ -34,7 +34,6 @@
 import org.apache.hc.core5.http.message.BasicHeader;
 import org.junit.Assert;
 import org.junit.Assume;
-import org.junit.Ignore;
 import org.junit.Test;
 
 import org.opensearch.action.admin.indices.alias.IndicesAliasesRequest;
@@ -270,7 +269,6 @@ public void testSingle() throws Exception {
     }
 
     @Test
-    @Ignore // https://github.com/opensearch-project/security/issues/2194
     public void testSpecialUsernames() throws Exception {
     
         setup();