diff --git a/build.gradle b/build.gradle
index 7ab5ba1..d667540 100644
--- a/build.gradle
+++ b/build.gradle
@@ -30,6 +30,7 @@ dependencies {
     implementation 'io.activej:activej-boot:5.5'
     implementation 'io.activej:activej-specializer:5.5'
     implementation 'io.activej:activej-launchers-http:5.5'
+    implementation 'org.hsqldb:hsqldb:2.7.2'
     implementation 'org.postgresql:postgresql:42.6.0'
     implementation 'org.hibernate:hibernate-core:6.3.1.Final'
     implementation 'org.hibernate:hibernate-hikaricp:6.3.1.Final'