diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e8ba6d2..f136f4b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,7 +20,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version-file: 'go.mod'
       - name: Run unit tests
         run: go test ./...
       - name: Run BDD tests
@@ -46,7 +46,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version-file: 'go.mod'
       
       - name: Determine version
         id: version
@@ -109,7 +109,7 @@ jobs:
       - name: Set up Go (for preseed tool)
         uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version-file: 'go.mod'
       
       - name: Generate changelog (for stable releases)
         if: startsWith(github.ref, 'refs/tags/v')
diff --git a/go.mod b/go.mod
index ea2a1e7..9f566e3 100644
--- a/go.mod
+++ b/go.mod
@@ -1,9 +1,9 @@
 module github.com/loginx/alfred-timein
 
-go 1.25
+go 1.26.2
 
 require (
-	github.com/codingsince1985/geo-golang v1.8.5
+	github.com/codingsince1985/geo-golang v1.9.0
 	github.com/cucumber/godog v0.15.1
 	github.com/ringsaturn/tzf v1.0.4
 	github.com/tkuchiki/go-timezone v0.2.3
diff --git a/go.sum b/go.sum
index fdd0bea..dba5bf6 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/codingsince1985/geo-golang v1.8.5 h1:Zc681GO3xQUPFxHnaaIhNzl4rRdPZf3qt3iOOAAZMrM=
-github.com/codingsince1985/geo-golang v1.8.5/go.mod h1:1EzFmdO4XUyijzbxQwT7CoE4v+7DTa3h4GlLo4CZq60=
+github.com/codingsince1985/geo-golang v1.9.0 h1:nY5ish5pJJXU033IkiF0yvpjM8mD/qcweizCDgDE6hk=
+github.com/codingsince1985/geo-golang v1.9.0/go.mod h1:SYo6Fv1HgVkst4eYim5aEhnVsRUTTK0ah4LN6l0l9rs=
 github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/cucumber/gherkin/go/v26 v26.2.0 h1:EgIjePLWiPeslwIWmNQ3XHcypPsWAHoMCz/YEBKP4GI=
 github.com/cucumber/gherkin/go/v26 v26.2.0/go.mod h1:t2GAPnB8maCT4lkHL99BDCVNzCh1d7dBhCLt150Nr/0=
@@ -74,8 +74,8 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 github.com/stretchr/testify v1.8.2/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/tidwall/cities v0.1.0 h1:CVNkmMf7NEC9Bvokf5GoSsArHCKRMTgLuubRTHnH0mE=
 github.com/tidwall/cities v0.1.0/go.mod h1:lV/HDp2gCcRcHJWqgt6Di54GiDrTZwh1aG2ZUPNbqa4=
 github.com/tidwall/geoindex v1.4.4/go.mod h1:rvVVNEFfkJVWGUdEfU8QaoOg/9zFX0h9ofWzA60mz1I=