diff --git a/packages/ui/Dockerfile b/packages/ui/Dockerfile
index 1fdb42d0..9a98cbad 100644
--- a/packages/ui/Dockerfile
+++ b/packages/ui/Dockerfile
@@ -18,7 +18,7 @@ RUN apk add --no-cache openjdk8
 WORKDIR /app/
 COPY --from=builder /workspace/certd-server/ /app/
 
-ENV LEGO_VERSION 4.19.2
+ENV LEGO_VERSION 4.22.2
 ENV LEGO_DOWNLOAD_DIR /app/tools/lego
 RUN mkdir -p $LEGO_DOWNLOAD_DIR
 
diff --git a/packages/ui/certd-server/.env b/packages/ui/certd-server/.env
index a4a947dd..bacaeded 100644
--- a/packages/ui/certd-server/.env
+++ b/packages/ui/certd-server/.env
@@ -1 +1 @@
-LEGO_VERSION=4.19.2
+LEGO_VERSION=4.22.2