diff --git a/.dvmrc b/.dvmrc
index d724e43..a82727c 100644
--- a/.dvmrc
+++ b/.dvmrc
@@ -1 +1 @@
-1.44.1
+1.46.3
diff --git a/.github/workflows/cron-check-subscriptions.yml b/.github/workflows/cron-check-subscriptions.yml
index 621a2bd..fd168b9 100644
--- a/.github/workflows/cron-check-subscriptions.yml
+++ b/.github/workflows/cron-check-subscriptions.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: denoland/setup-deno@v1
         with:
-          deno-version: v1.44.1
+          deno-version-file: .dvmrc
       - env:
           POSTGRESQL_HOST: ${{ secrets.POSTGRESQL_HOST }}
           POSTGRESQL_USER: ${{ secrets.POSTGRESQL_USER }}
diff --git a/.github/workflows/cron-cleanup.yml b/.github/workflows/cron-cleanup.yml
index 77124c1..3bee326 100644
--- a/.github/workflows/cron-cleanup.yml
+++ b/.github/workflows/cron-cleanup.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: denoland/setup-deno@v1
         with:
-          deno-version: v1.44.1
+          deno-version-file: .dvmrc
       - env:
           POSTGRESQL_HOST: ${{ secrets.POSTGRESQL_HOST }}
           POSTGRESQL_USER: ${{ secrets.POSTGRESQL_USER }}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 0923c25..58157c3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -9,7 +9,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: denoland/setup-deno@v1
         with:
-          deno-version: v1.44.1
+          deno-version-file: .dvmrc
       - run: docker-compose pull
       - uses: jpribyl/action-docker-layer-caching@v0.1.1
         continue-on-error: true
diff --git a/Dockerfile b/Dockerfile
index 6c24992..c2a28fc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM denoland/deno:1.44.1
+FROM denoland/deno:1.46.3
 
 EXPOSE 8000
 
diff --git a/Makefile b/Makefile
index e667bc3..779c288 100644
--- a/Makefile
+++ b/Makefile
@@ -10,6 +10,7 @@ format:
 test:
 	deno fmt --check
 	deno lint
+	deno check .
 	deno test --allow-net --allow-read --allow-env --check
 
 .PHONY: migrate-db
diff --git a/deno.json b/deno.json
index db44ca8..14d4921 100644
--- a/deno.json
+++ b/deno.json
@@ -29,6 +29,15 @@
       "deno.ns"
     ]
   },
-  "importMap": "./import_map.json",
-  "lock": false
+  "lock": false,
+  "imports": {
+    "/": "./",
+    "./": "./",
+
+    "std/assert/equals": "jsr:@std/assert@1.0.6/equals",
+    "std/assert/not-equals": "jsr:@std/assert@1.0.6/not-equals",
+    "std/http/file-server": "jsr:@std/http@1.0.7/file-server",
+    "std/dotenv/load": "jsr:@std/dotenv@0.225.2/load",
+    "deno/emit": "jsr:@deno/emit@0.45.0"
+  }
 }
diff --git a/import_map.json b/import_map.json
deleted file mode 100644
index aa95d2f..0000000
--- a/import_map.json
+++ /dev/null
@@ -1,12 +0,0 @@
-{
-  "imports": {
-    "/": "./",
-    "./": "./",
-
-    "std/assert/assert-equals": "jsr:@std/assert@0.226.0/assert-equals",
-    "std/assert/assert-not-equals": "jsr:@std/assert@0.226.0/assert-not-equals",
-    "std/http/file-server": "jsr:@std/http@0.224.4/file-server",
-    "std/dotenv/load": "jsr:@std/dotenv@0.224.0/load",
-    "deno/emit": "jsr:@deno/emit@0.41.0"
-  }
-}
diff --git a/lib/utils_test.ts b/lib/utils_test.ts
index 51c120a..c3e442d 100644
--- a/lib/utils_test.ts
+++ b/lib/utils_test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from 'std/assert/assert-equals';
+import { assertEquals } from 'std/assert/equals';
 import { escapeHtml, generateRandomCode, jsonToFormUrlEncoded, splitArrayInChunks } from './utils.ts';
 
 Deno.test('that escapeHtml works', () => {
diff --git a/main_test.ts b/main_test.ts
index 3164b60..6419340 100644
--- a/main_test.ts
+++ b/main_test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from 'std/assert/assert-equals';
+import { assertEquals } from 'std/assert/equals';
 import { abortController } from './main.ts';
 
 const baseUrl = 'http://localhost:8000';
diff --git a/public/ts/encryption_test.ts b/public/ts/encryption_test.ts
index c43c495..174e270 100644
--- a/public/ts/encryption_test.ts
+++ b/public/ts/encryption_test.ts
@@ -1,5 +1,5 @@
-import { assertEquals } from 'std/assert/assert-equals';
-import { assertNotEquals } from 'std/assert/assert-not-equals';
+import { assertEquals } from 'std/assert/equals';
+import { assertNotEquals } from 'std/assert/not-equals';
 import { KeyPair } from '/lib/types.ts';
 import Encryption from './encryption.ts';
 
diff --git a/public/ts/utils_test.ts b/public/ts/utils_test.ts
index 387a449..44b876e 100644
--- a/public/ts/utils_test.ts
+++ b/public/ts/utils_test.ts
@@ -1,4 +1,4 @@
-import { assertEquals } from 'std/assert/assert-equals';
+import { assertEquals } from 'std/assert/equals';
 import { dateDiffInDays, formatNumber, SupportedCurrencySymbol, validateEmail } from './utils.ts';
 
 Deno.test('that dateDiffInDays works', () => {