diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 0b2c7b5..a47ec12 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -29,7 +29,7 @@ jobs:
 
     - uses: actions/setup-go@v2
       with:
-        go-version: "1.20"
+        go-version: "1.21"
 
     - run: |
         go mod download
diff --git a/Makefile b/Makefile
index c1acb3c..c5ad60b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-BASE_IMAGE = golang:1.20-alpine3.18
+BASE_IMAGE = golang:1.21-alpine3.18
 LINT_IMAGE = golangci/golangci-lint:v1.53.3
 
 .PHONY: $(shell ls)
diff --git a/go.mod b/go.mod
index 8864ba8..75fc6f9 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/bluenviron/mavp2p
 
-go 1.20
+go 1.21
 
 require (
 	github.com/alecthomas/kong v0.8.1
diff --git a/go.sum b/go.sum
index 2b44c88..62f7c0e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,14 +1,18 @@
 bou.ke/monkey v1.0.2 h1:kWcnsrCNUatbxncxR/ThdYqbytgOIArtYWqcQLQzKLI=
+bou.ke/monkey v1.0.2/go.mod h1:OqickVX3tNx6t33n1xvtTtu85YN5s6cKwVug+oHMaIA=
 github.com/alecthomas/assert/v2 v2.1.0 h1:tbredtNcQnoSd3QBhQWI7QZ3XHOVkw1Moklp2ojoH/0=
+github.com/alecthomas/assert/v2 v2.1.0/go.mod h1:b/+1DI2Q6NckYi+3mXyH3wFb8qG37K/DuK80n7WefXA=
 github.com/alecthomas/kong v0.8.1 h1:acZdn3m4lLRobeh3Zi2S2EpnXTd1mOL6U7xVml+vfkY=
 github.com/alecthomas/kong v0.8.1/go.mod h1:n1iCIO2xS46oE8ZfYCNDqdR0b0wZNrXAIAqro/2132U=
 github.com/alecthomas/repr v0.1.0 h1:ENn2e1+J3k09gyj2shc0dHr/yjaWSHRlrJ4DPMevDqE=
+github.com/alecthomas/repr v0.1.0/go.mod h1:2kn6fqh/zIyPLmm3ugklbEi5hg5wS435eygvNfaDQL8=
 github.com/bluenviron/gomavlib/v2 v2.1.1 h1:jh39fb+BIRSx/V0sqM3Gqd/3QNwWAo7wDhYa3HQaaoY=
 github.com/bluenviron/gomavlib/v2 v2.1.1/go.mod h1:L35uZ/Yvp9ogsHwUZmIniKMVZ4gm3oK+Gwev3D7iVQU=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 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/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
+github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
 github.com/pion/logging v0.2.2/go.mod h1:k0/tDVsRCX2Mb2ZEmTqNa7CWsQPc+YYCB7Q+5pahoms=
 github.com/pion/transport/v2 v2.2.4 h1:41JJK6DZQYSeVLxILA2+F4ZkKb4Xd/tFJZRFZQ9QAlo=
 github.com/pion/transport/v2 v2.2.4/go.mod h1:q2U/tf9FEfnSBGSW6w5Qp5PFWRLRj3NjLhCCgpRK4p0=
diff --git a/manualtests/mavp2p/Dockerfile b/manualtests/mavp2p/Dockerfile
index 3f6177e..ea4b5c6 100644
--- a/manualtests/mavp2p/Dockerfile
+++ b/manualtests/mavp2p/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20
+FROM golang:1.21
 
 WORKDIR /src