diff --git a/docker/odklite/Dockerfile b/docker/odklite/Dockerfile
index 3e562f6e..42a7c092 100644
--- a/docker/odklite/Dockerfile
+++ b/docker/odklite/Dockerfile
@@ -3,7 +3,7 @@ LABEL maintainer="obo-tools@googlegroups.com"
 
 ENV ROBOT_VERSION=1.9.6
 ENV DOSDP_VERSION=0.19.3
-ENV OWLTOOLS_VERSION=2024-06-12
+ENV OWLTOOLS_VERSION=2020-04-06
 ENV AMMONITE_VERSION=2.5.9
 
 WORKDIR /tools