diff --git a/docker/dockerfile-languagetool b/docker/dockerfile-languagetool
index 59490997..bf005419 100644
--- a/docker/dockerfile-languagetool
+++ b/docker/dockerfile-languagetool
@@ -5,7 +5,7 @@ RUN apt-get install openjdk-17-jdk wget -y
 
 EXPOSE 7001
 
-ENV LT_VERSION 6.4
+ENV LT_VERSION 6.5
 ENV ROOT /srv
 ENV LT $ROOT/LanguageTool-$LT_VERSION