diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
index 41f6e6b..a850a6c 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -15,7 +15,7 @@ A clear and concise description of what you expected to happen.
 
 **Desktop (please complete the following information):**
  - OS: [e.g. iOS]
- - Go version: [e.g. 1.26.6]
+ - Go version: [e.g. 1.27.0]
 
 **Additional context**
 Add any other context about the problem here.
diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
index 301a1de..c717ac1 100644
--- a/.github/workflows/master.yml
+++ b/.github/workflows/master.yml
@@ -16,10 +16,10 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Set up Go 1.26.6
+    - name: Set up Go 1.27.0
       uses: actions/setup-go@v7
       with:
-        go-version: '1.26.6'
+        go-version: '1.27.0'
 
     - name: Build
       run: go build -v ./...
@@ -27,7 +27,7 @@ jobs:
     - name: Lint
       uses: golangci/golangci-lint-action@v9
       with:
-        version: v2.12.2
+        version: v2.13.2
 
     - name: Format
       run: |
@@ -57,7 +57,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        go-version: ['1.25.10', '1.26.6']
+        go-version: ['1.25.10', '1.26.6', '1.27.0']
 
     steps:
     - name: Git checkout
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9199616..8c46bb7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -15,10 +15,10 @@ jobs:
     - name: Git checkout
       uses: actions/checkout@v7
 
-    - name: Set up Go 1.26.6
+    - name: Set up Go 1.27.0
       uses: actions/setup-go@v7
       with:
-        go-version: '1.26.6'
+        go-version: '1.27.0'
 
     - name: Validate tag is semver
       run: |
@@ -63,7 +63,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        go-version: ['1.25.10', '1.26.6']
+        go-version: ['1.25.10', '1.26.6', '1.27.0']
 
     steps:
     - name: Git checkout
@@ -91,10 +91,10 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Set up Go 1.26.6
+    - name: Set up Go 1.27.0
       uses: actions/setup-go@v7
       with:
-        go-version: '1.26.6'
+        go-version: '1.27.0'
 
     - name: Build
       run: go build -v ./...
@@ -102,7 +102,7 @@ jobs:
     - name: Lint
       uses: golangci/golangci-lint-action@v9
       with:
-        version: v2.12.2
+        version: v2.13.2
 
     - name: Format
       run: |
@@ -133,10 +133,10 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Set up Go 1.26.6
+    - name: Set up Go 1.27.0
       uses: actions/setup-go@v7
       with:
-        go-version: '1.26.6'
+        go-version: '1.27.0'
 
     - name: Verify module & generate checksums
       run: |
@@ -172,10 +172,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - name: Set up Go 1.26.6
+    - name: Set up Go 1.27.0
       uses: actions/setup-go@v7
       with:
-        go-version: '1.26.6'
+        go-version: '1.27.0'
 
     - name: Notify Go module proxy
       run: |
diff --git a/.github/workflows/sonar.yml b/.github/workflows/sonar.yml
index d534860..ccf3f91 100644
--- a/.github/workflows/sonar.yml
+++ b/.github/workflows/sonar.yml
@@ -33,10 +33,10 @@ jobs:
         ref: ${{ steps.pr.outputs.head_sha }}
         fetch-depth: 0
 
-    - name: Set up Go 1.26.6
+    - name: Set up Go 1.27.0
       uses: actions/setup-go@v7
       with:
-        go-version: '1.26.6'
+        go-version: '1.27.0'
 
     - name: Build
       run: go build -v ./...
@@ -44,7 +44,7 @@ jobs:
     - name: Lint
       uses: golangci/golangci-lint-action@v9
       with:
-        version: v2.12.2
+        version: v2.13.2
 
     - name: Test
       run: go test -p 1 -v ./... -coverprofile="coverage.out"
diff --git a/.github/workflows/staging.yml b/.github/workflows/staging.yml
index ffcd41f..735208a 100644
--- a/.github/workflows/staging.yml
+++ b/.github/workflows/staging.yml
@@ -7,7 +7,7 @@ on:
       go:
         description: 'Go version'
         required: true
-        default: '1.26.6'
+        default: '1.27.0'
       os:
         description: 'Operating System (ubuntu-20.04, ubuntu-latest, windows-latest)'
         required: true
@@ -40,7 +40,7 @@ jobs:
       if: ${{ github.event.inputs.skip-lint != 'true' }}
       uses: golangci/golangci-lint-action@v9
       with:
-        version: v2.12.2
+        version: v2.13.2
 
     - name: Format
       run: |
diff --git a/Makefile b/Makefile
index 877c0e3..d9b114b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 .PHONY: test fmt cover cover-html lint lint-install godoc-install docs vulncheck vulncheck-install
 
-GOLANGCI_LINT_VERSION=v2.12.2
+GOLANGCI_LINT_VERSION=v2.13.2
 GOVULNCHECK_VERSION=v1.7.0
 
 test-clean:
diff --git a/go.mod b/go.mod
index b2ed512..018a66d 100644
--- a/go.mod
+++ b/go.mod
@@ -2,10 +2,6 @@ module github.com/switcherapi/switcher-client-go
 
 go 1.25
 
-require github.com/stretchr/testify v1.11.1
+require github.com/stretchr/testify v1.12.1
 
-require (
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
-)
+require go.yaml.in/yaml/v3 v3.0.5 // indirect
diff --git a/go.sum b/go.sum
index c4c1710..c233683 100644
--- a/go.sum
+++ b/go.sum
@@ -1,10 +1,4 @@
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
-github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+github.com/stretchr/testify v1.12.1 h1:EuwCh5fleGS7H32xRwO3wRGT7DxrDhLAT6FF8MpWDWE=
+github.com/stretchr/testify v1.12.1/go.mod h1:MDEgiDPPsNp5cuIrHPPCyornHKgEVbtFUmoNlxoYthg=
+go.yaml.in/yaml/v3 v3.0.5 h1:N6y/pJk8buWs9NY5ERU2HSMfm+IuD/OtfdAnq6kESPw=
+go.yaml.in/yaml/v3 v3.0.5/go.mod h1:HVTZu1O7/Vkt2N+BFy8Zza+lnLsABggaTM2ZpNIGuKg=