diff --git a/Dockerfile b/Dockerfile
index 17a1111..b9e8792 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,7 +5,7 @@ ENV DEBIAN_FRONTEND="noninteractive" HOME="/root" LC_ALL="C.UTF-8" LANG="en_US.U
 ENV supervisor_conf /etc/supervisor/supervisord.conf
 ENV security_conf /etc/apache2/conf-available/security.conf
 ENV start_scripts_path /bin
-ENV WT_VERSION="2.1.19"
+ENV WT_VERSION="2.1.20"
 
 # Install and activate necessary software
 RUN apt-get update -qq && apt-get upgrade -qy && apt-get install -qy \
diff --git a/Dockerfile.github b/Dockerfile.github
index 2869db4..61b52f1 100644
--- a/Dockerfile.github
+++ b/Dockerfile.github
@@ -2,7 +2,7 @@ ARG ARCH=amd64
 
 FROM ${ARCH}/ubuntu:22.04
 
-ARG WT_VERSION=2.1.19
+ARG WT_VERSION=2.1.20
 ARG QEMU_ARCH=x86_64
 
 ARG BUILD_DATE=2021-01-01T08:00:00Z