diff --git a/spring-boot-dependencies/pom.xml b/spring-boot-dependencies/pom.xml
index 9963299a220..a03ffd71ce4 100644
--- a/spring-boot-dependencies/pom.xml
+++ b/spring-boot-dependencies/pom.xml
@@ -89,7 +89,7 @@
 		<hikaricp.version>2.5.1</hikaricp.version>
 		<hikaricp-java6.version>2.3.13</hikaricp-java6.version>
 		<hsqldb.version>2.3.3</hsqldb.version>
-		<htmlunit.version>2.23</htmlunit.version>
+		<htmlunit.version>2.21</htmlunit.version>
 		<httpasyncclient.version>4.1.2</httpasyncclient.version>
 		<httpclient.version>4.5.2</httpclient.version>
 		<httpcore.version>4.4.5</httpcore.version>
@@ -140,7 +140,7 @@
 		<querydsl.version>4.1.4</querydsl.version>
 		<reactor.version>3.0.4.RELEASE</reactor.version>
 		<selenium.version>2.53.1</selenium.version>
-		<selenium-htmlunit.version>2.23.2</selenium-htmlunit.version>
+		<selenium-htmlunit.version>2.21</selenium-htmlunit.version>
 		<sendgrid.version>2.2.2</sendgrid.version>
 		<servlet-api.version>3.1.0</servlet-api.version>
 		<simple-json.version>1.1.1</simple-json.version>