diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 3c4312d..d06fb51 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -12,7 +12,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go-version: ["1.20"]
+        go-version: ["1.22"]
     runs-on: ubuntu-latest
 
     steps:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c8fd6ee..68efba8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
   build:
     strategy:
       matrix:
-        go-version: ["1.18", "1.19", "1.20"]
+        go-version: ["1.21", "1.22"]
         # TODO(mdlayher): tests are failing on macOS but almost all consumers of
         # this package are Linux. Investigate.
         os: [ubuntu-latest]
diff --git a/go.mod b/go.mod
index 46fcd4c..eabfc6f 100644
--- a/go.mod
+++ b/go.mod
@@ -3,11 +3,11 @@ module github.com/mdlayher/ndp
 go 1.20
 
 require (
-	github.com/google/go-cmp v0.5.9
-	golang.org/x/net v0.9.0
+	github.com/google/go-cmp v0.6.0
+	golang.org/x/net v0.22.0
 )
 
 require (
-	golang.org/x/sys v0.7.0 // indirect
-	golang.org/x/text v0.9.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 0cec149..712ae8c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,8 +1,8 @@
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-golang.org/x/net v0.9.0 h1:aWJ/m6xSmxWBx+V0XRHTlrYrPG56jKsLdTFmsSsCzOM=
-golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
-golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
-golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+golang.org/x/net v0.22.0 h1:9sGLhx7iRIHEiX0oAJ3MRZMUCElJgy7Br1nO+AMN3Tc=
+golang.org/x/net v0.22.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
+golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
+golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=