diff --git a/.dvmrc b/.dvmrc
index aedc15b..da6b0a8 100644
--- a/.dvmrc
+++ b/.dvmrc
@@ -1 +1 @@
-2.5.3
+2.5.6
diff --git a/Dockerfile b/Dockerfile
index 1bfc027..ce471d6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM denoland/deno:ubuntu-2.5.3
+FROM denoland/deno:ubuntu-2.5.6
 
 EXPOSE 8000