diff --git a/_grammar-test/pom.xml b/_grammar-test/pom.xml
index 9f067f7..1bde81d 100644
--- a/_grammar-test/pom.xml
+++ b/_grammar-test/pom.xml
@@ -27,7 +27,7 @@
         <dependency>
             <groupId>com.github.julianthome</groupId>
             <artifactId>inmemantlr-api</artifactId>
-            <version>1.7.0</version>
+            <version>1.9.2</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>