diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ae63d4c..20b6866 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,10 +13,10 @@ jobs:
     runs-on: ubuntu-latest
     continue-on-error: false
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - uses: crystal-lang/install-crystal@v1
         with:
-          crystal: 1.4.1
+          crystal: latest
       - name: Install shards
         run: shards install
       - name: Format
@@ -27,35 +27,23 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
+        os:
+          - ubuntu-latest
+        postgres_version:
+          - 16
         crystal_version:
-          - 1.4.0
+          - 1.10.0
           - latest
         experimental:
           - false
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     continue-on-error: ${{ matrix.experimental }}
-    services:
-      postgres:
-        image: postgres:13-alpine
-        env:
-          POSTGRES_USER: lucky
-          POSTGRES_PASSWORD: developer
-        ports:
-          - 5432:5432
-        # needed because the postgres container does not provide a healthcheck
-        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: crystal-lang/install-crystal@v1
         with:
           crystal: ${{matrix.crystal_version}}
       - name: Install shards
-        run: shards install
-      - name: Setup Database
-        run: crystal tasks.cr db.setup
-        env:
-          DATABASE_URL: postgres://lucky:developer@localhost:5432/authentic_test
+        run: shards install --skip-postinstall --skip-executables
       - name: Run tests
         run: crystal spec
-        env:
-          DATABASE_URL: postgres://lucky:developer@localhost:5432/authentic_test
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 07e232f..65be2ed 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -8,18 +8,18 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           persist-credentials: false
       - uses: crystal-lang/install-crystal@v1
         with:
           crystal: latest
       - name: "Install shards"
-        run: shards install
+        run: shards install --skip-postinstall --skip-executables
       - name: "Generate docs"
         run: crystal docs
       - name: Deploy to GitHub Pages
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./docs
diff --git a/config.cr b/config.cr
index 176cda3..dfeb098 100644
--- a/config.cr
+++ b/config.cr
@@ -1,19 +1,9 @@
-database = "authentic_test"
-
 class AppDatabase < Avram::Database
 end
 
+# The specs for this shard don't actually make DB queries
 AppDatabase.configure do |settings|
-  if ENV["DATABASE_URL"]?
-    settings.credentials = Avram::Credentials.parse(ENV["DATABASE_URL"])
-  else
-    settings.credentials = Avram::Credentials.new(
-      database: database,
-      hostname: "db",
-      username: "lucky",
-      password: "developer"
-    )
-  end
+  settings.credentials = Avram::Credentials.parse("postgres://fake:password@localhost:5432/not_used")
 end
 
 Avram.configure do |settings|
diff --git a/shard.yml b/shard.yml
index f083348..4fbe50b 100644
--- a/shard.yml
+++ b/shard.yml
@@ -4,7 +4,7 @@ version: 1.0.0
 authors:
   - Paul Smith <paulcsmith0218@gmail.com>
 
-crystal: ">= 1.6.0"
+crystal: ">= 1.10.0"
 
 license: MIT
 
@@ -17,9 +17,9 @@ dependencies:
     version: ">= 1.0.0"
   habitat:
     github: luckyframework/habitat
-    version: ~> 0.4.7
+    version: ~> 0.4.9
 
 development_dependencies:
   ameba:
     github: crystal-ameba/ameba
-    version: ~> 1.1.0
+    version: ~> 1.5.0
diff --git a/spec/action_helpers_spec.cr b/spec/action_helpers_spec.cr
index b0a4bc9..e5a8195 100644
--- a/spec/action_helpers_spec.cr
+++ b/spec/action_helpers_spec.cr
@@ -35,7 +35,7 @@ describe Authentic::ActionHelpers do
     action.sign_in(FakeAuthenticatable.new(id: 123))
 
     action.current_user.should be_a FakeAuthenticatable
-    action.current_user.not_nil!.id.should eq 123
+    action.current_user.as(FakeAuthenticatable).id.should eq 123
   end
 
   it "returns nil if user is not signed in?" do
diff --git a/spec/authentic_spec.cr b/spec/authentic_spec.cr
index e6f5936..fdbcf50 100644
--- a/spec/authentic_spec.cr
+++ b/spec/authentic_spec.cr
@@ -95,7 +95,7 @@ describe Authentic do
 
     Authentic.copy_and_encrypt from: password, to: encrypted_password
 
-    encrypted_password.value.not_nil!.size.should eq 60
+    encrypted_password.value.as(String).size.should eq 60
   end
 
   it "can create an encrypted password" do
diff --git a/spec/spec_helper.cr b/spec/spec_helper.cr
index 3ef7f29..e0e1f68 100644
--- a/spec/spec_helper.cr
+++ b/spec/spec_helper.cr
@@ -2,7 +2,3 @@ require "spec"
 require "../src/authentic"
 require "../config"
 require "./support/**"
-
-Spec.before_each do
-  AppDatabase.truncate
-end