diff --git a/src/bin/build-keycloak-theme/build-keycloak-theme.ts b/src/bin/build-keycloak-theme/build-keycloak-theme.ts
index 381df3c9..54a1e186 100644
--- a/src/bin/build-keycloak-theme/build-keycloak-theme.ts
+++ b/src/bin/build-keycloak-theme/build-keycloak-theme.ts
@@ -92,7 +92,7 @@ export function main() {
     });
 
     //We want, however to test in a container running the latest Keycloak version
-    const containerKeycloakVersion = "18.0.0";
+    const containerKeycloakVersion = "17.0.1";
 
     generateStartKeycloakTestingContainer({
         keycloakThemeBuildingDirPath,