diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 4d40beb..df032a5 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.25'
+          go-version: '1.26'
           cache: true
 
       - name: Write coverage profile
@@ -45,14 +45,14 @@ jobs:
     strategy:
       matrix:
         os: [ ubuntu-latest, windows-latest, macos-latest ]
-        go_versions: [ '1.24', '1.25' ]
+        go_versions: [ '1.25', '1.26' ]
         exclude:
           - os: macos-latest
-            go_versions: '1.24'
+            go_versions: '1.25'
           - os: windows-latest
-            go_versions: '1.24'
-          - os: ubuntu-latest
             go_versions: '1.25'
+          - os: ubuntu-latest
+            go_versions: '1.26'
       fail-fast: false
     steps:
       - uses: actions/checkout@v4
diff --git a/go.mod b/go.mod
index dff1442..0d5fe13 100644
--- a/go.mod
+++ b/go.mod
@@ -1,10 +1,10 @@
 module github.com/nspcc-dev/tzhash
 
-go 1.24
+go 1.25
 
 require (
 	github.com/stretchr/testify v1.11.1
-	golang.org/x/sys v0.35.0
+	golang.org/x/sys v0.41.0
 )
 
 require (
diff --git a/go.sum b/go.sum
index 8591270..d7a8112 100644
--- a/go.sum
+++ b/go.sum
@@ -4,8 +4,8 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
 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=
-golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
-golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 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=