diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 1ccee7c..48f5702 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -39,6 +39,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
+        go: ["1.26", "1.27"]
         include:
           - os: ubuntu-latest
             go-build: ~/.cache/go-build
@@ -55,7 +56,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v7
         with:
-          go-version-file: go.mod
+          go-version: ${{ matrix.go }}
           check-latest: true
 
       - uses: actions/cache@v6
@@ -63,7 +64,7 @@ jobs:
           path: |
             ${{ matrix.go-build }}
             ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+          key: ${{ runner.os }}-go-${{ matrix.go }}-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-
       - name: Run Tests
diff --git a/go.mod b/go.mod
index 9ea05f0..88ec28c 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/charmbracelet/bubbletea v1.3.10
 	github.com/erikgeiser/promptkit v0.11.0
 	github.com/fatih/color v1.19.0
-	github.com/go-authgate/sdk-go v0.11.0
+	github.com/go-signet/sdk-go v1.1.0
 	github.com/joho/godotenv v1.5.1
 	github.com/liushuangls/go-anthropic/v2 v2.20.1
 	github.com/rodaine/table v1.3.1
diff --git a/go.sum b/go.sum
index 7f07e85..3e77cdf 100644
--- a/go.sum
+++ b/go.sum
@@ -67,13 +67,13 @@ github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHk
 github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/fsnotify/fsnotify v1.10.1 h1:b0/UzAf9yR5rhf3RPm9gf3ehBPpf0oZKIjtpKrx59Ho=
 github.com/fsnotify/fsnotify v1.10.1/go.mod h1:TLheqan6HD6GBK6PrDWyDPBaEV8LspOxvPSjC+bVfgo=
-github.com/go-authgate/sdk-go v0.11.0 h1:ZTfJ0rzeDn4QBqAmF9VKS3CqlKhE8+0tJxg8OGNtIzo=
-github.com/go-authgate/sdk-go v0.11.0/go.mod h1:sa0ige5wtayj2WcnXlxa8wGuyi5z/c/chc0mXPJTl/Q=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
 github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
+github.com/go-signet/sdk-go v1.1.0 h1:wHKg9P+goQ14A1Q0gtC6m3mCzRFWwL1peAGz/zhmAZQ=
+github.com/go-signet/sdk-go v1.1.0/go.mod h1:bmi7nDAu7o6MQnUE3K7ZNEKU4xqh3u/SMbPC5GanOR8=
 github.com/go-viper/mapstructure/v2 v2.5.0 h1:vM5IJoUAy3d7zRSVtIwQgBj7BiWtMPfmPEgAXnvj1Ro=
 github.com/go-viper/mapstructure/v2 v2.5.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
 github.com/godbus/dbus/v5 v5.2.2 h1:TUR3TgtSVDmjiXOgAAyaZbYmIeP3DPkld3jgKGV8mXQ=
diff --git a/util/credstore.go b/util/credstore.go
index b18259b..69d7a21 100644
--- a/util/credstore.go
+++ b/util/credstore.go
@@ -4,7 +4,7 @@ import (
 	"os"
 	"path/filepath"
 
-	"github.com/go-authgate/sdk-go/credstore"
+	"github.com/go-signet/sdk-go/credstore"
 )
 
 const credServiceName = "codegpt"
diff --git a/util/credstore_test.go b/util/credstore_test.go
index 910d4a3..0b8fc9c 100644
--- a/util/credstore_test.go
+++ b/util/credstore_test.go
@@ -4,7 +4,7 @@ import (
 	"path/filepath"
 	"testing"
 
-	"github.com/go-authgate/sdk-go/credstore"
+	"github.com/go-signet/sdk-go/credstore"
 )
 
 // newTestCredStore returns a file-backed SecureStore using a temp directory.