diff --git a/.dvmrc b/.dvmrc
index e261122..da6b0a8 100644
--- a/.dvmrc
+++ b/.dvmrc
@@ -1 +1 @@
-2.6.7
+2.5.6
diff --git a/Dockerfile b/Dockerfile
index ddc96f1..9498af7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM denoland/deno:ubuntu-2.6.7
+FROM denoland/deno:ubuntu-2.5.6
 
 EXPOSE 8000
 
diff --git a/deno.json b/deno.json
index 885597d..4005b45 100644
--- a/deno.json
+++ b/deno.json
@@ -52,19 +52,14 @@
     "@std/path": "jsr:@std/path@1.1.2",
 
     "chart.js": "npm:chart.js@4.5.0",
-    "chart.js/auto": "npm:chart.js@4.5.0/auto",
     "jimp": "npm:jimp@1.6.0",
     "mrmime": "npm:mrmime@2.0.1",
     "nodemailer": "npm:nodemailer@7.0.6",
     "openid-client": "npm:openid-client@6.8.0",
     "otpauth": "npm:otpauth@9.4.1",
     "preact": "npm:preact@10.28.3",
-    "preact/debug": "npm:preact@10.28.3/debug",
-    "preact/hooks": "npm:preact@10.28.3/hooks",
-    "preact/jsx-runtime": "npm:preact@10.28.3/jsx-runtime",
     "tailwindcss": "npm:tailwindcss@3.4.17",
     "tailwindcss/": "npm:tailwindcss@3.4.17/",
-    "tailwindcss/plugin": "npm:tailwindcss@3.4.17/plugin.js",
     "vite": "npm:vite@7.3.1",
     "@preact/signals": "npm:@preact/signals@2.6.2"
   }