diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 52f7ead..77f9a0f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,19 +6,19 @@ jobs:
   all:
     strategy:
       matrix:
-        go-version: [1.17.x]
+        go-version: [1.21.x]
         os: [ubuntu-latest]
-        task-version: [v3.10.0]
+        task-version: [v3.34.0]
     runs-on: ${{ matrix.os }}
     steps:
     - name: Install Go ${{ matrix.go-version }}
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v4
       with:
         go-version: ${{ matrix.go-version }}
     - name: Install task ${{ matrix.task-version }}
       run: go install github.com/go-task/task/v3/cmd/task@${{ matrix.task-version }}
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         # By default, actions/checkout will persist the GITHUB_TOKEN, so that further
         # steps in the job can perform authenticated git commands (that is: WRITE to
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c0b7a64..e843de0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - The script generated by `terravalet import` now prints each command before executing it. This helps to understand which command is being executed.
 
+### Changes
+
+- Use Go 1.21
+
 ## [v0.7.2] - (2023-02-28)
 
 ### Fixes
@@ -21,7 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixes
 
-- import: use quote formatting verb to allow for multi word resource addresses
+- import: use quote formatting verb to allow for multi-word resource addresses
 
 ## [v0.7.0] - (2022-02-08)
 
@@ -142,7 +146,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changes
 
-- Migration script: do not print any more the count `>>> 1/N`, because each time N changed, this was causing N spurious diffs, hiding the real elements that changed. The `terravalet_output_format` is now 2.
+- Migration script: do not print anymore the count `>>> 1/N`, because each time N changed, this was causing N spurious diffs, hiding the real elements that changed. The `terravalet_output_format` is now 2.
 - Migration script: do not take a lock; it is useless as long as the operations are strictly on a local state file. This speeds up the runtime.
 
 ### New
diff --git a/README.md b/README.md
index d01319d..40c6534 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@ There are three modes of operation:
 - [Move resources](#-move-resources-from-one-state-to-another) from one Terraform state to another.
 - [Import existing resources](#-import-existing-resources) into Terraform state.
 
-they will be explained in the following sections.
+They will be explained in the following sections.
 
 You can also look at the tests and in particular at the files below [testdata/](testdata) for a rough idea.
 
diff --git a/Taskfile.yml b/Taskfile.yml
index da2fc8c..647c91d 100644
--- a/Taskfile.yml
+++ b/Taskfile.yml
@@ -8,9 +8,9 @@ vars:
     sh: "echo $(which gotestsum 2> /dev/null)"
   TESTRUNNER: "{{if .GOTESTSUM}}{{base .GOTESTSUM}} --{{else}}go test{{end}}"
   #
-  GOLANGCI_VERSION: v1.43.0
-  GOTESTSUM_VERSION: v1.7.0
-  GOLINES_VERSION: v0.7.0
+  GOLANGCI_VERSION: v1.55.2
+  GOTESTSUM_VERSION: v1.11.0
+  GOLINES_VERSION: v0.12.2
 
 tasks:
 
diff --git a/go.mod b/go.mod
index 24b057d..c70874e 100644
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,12 @@
 module github.com/pix4d/terravalet
 
-go 1.17
+go 1.21
 
 require (
-	github.com/alexflint/go-arg v1.4.2
+	github.com/alexflint/go-arg v1.4.3
 	github.com/dexyk/stringosim v0.0.0-20170922105913-9d0b3e91a842
-	github.com/google/go-cmp v0.5.7
+	github.com/google/go-cmp v0.6.0
 	github.com/scylladb/go-set v1.0.3-0.20200225121959-cc7b2070d91e
 )
 
-require github.com/alexflint/go-scalar v1.1.0 // indirect
+require github.com/alexflint/go-scalar v1.2.0 // indirect
diff --git a/go.sum b/go.sum
index 07eee7a..03b80f0 100644
--- a/go.sum
+++ b/go.sum
@@ -1,8 +1,13 @@
 github.com/alexflint/go-arg v1.4.2 h1:lDWZAXxpAnZUq4qwb86p/3rIJJ2Li81EoMbTMujhVa0=
 github.com/alexflint/go-arg v1.4.2/go.mod h1:9iRbDxne7LcR/GSvEr7ma++GLpdIU1zrghf2y2768kM=
+github.com/alexflint/go-arg v1.4.3 h1:9rwwEBpMXfKQKceuZfYcwuc/7YY7tWJbFsgG5cAU/uo=
+github.com/alexflint/go-arg v1.4.3/go.mod h1:3PZ/wp/8HuqRZMUUgu7I+e1qcpUbvmS258mRXkFH4IA=
 github.com/alexflint/go-scalar v1.0.0/go.mod h1:GpHzbCOZXEKMEcygYQ5n/aa4Aq84zbxjy3MxYW0gjYw=
 github.com/alexflint/go-scalar v1.1.0 h1:aaAouLLzI9TChcPXotr6gUhq+Scr8rl0P9P4PnltbhM=
 github.com/alexflint/go-scalar v1.1.0/go.mod h1:LoFvNMqS1CPrMVltza4LvnGKhaSpc3oyLEBUZVhhS2o=
+github.com/alexflint/go-scalar v1.2.0 h1:WR7JPKkeNpnYIOfHRa7ivM21aWAdHD0gEWHCx+WQBRw=
+github.com/alexflint/go-scalar v1.2.0/go.mod h1:LoFvNMqS1CPrMVltza4LvnGKhaSpc3oyLEBUZVhhS2o=
+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/dexyk/stringosim v0.0.0-20170922105913-9d0b3e91a842 h1:FWXGhOthNyZKdK0YVyDrkg5dCXOfKvexcRG37U1v6AQ=
@@ -11,11 +16,17 @@ github.com/fatih/set v0.2.1 h1:nn2CaJyknWE/6txyUDGwysr3G5QC6xWB/PtVjPBbeaA=
 github.com/fatih/set v0.2.1/go.mod h1:+RKtMCH+favT2+3YecHGxcc0b4KyVWA1QWWJUs4E0CI=
 github.com/google/go-cmp v0.5.7 h1:81/ik6ipDQS2aGcBfIN5dHDB36BwrStyeAQquSYCV4o=
 github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 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/scylladb/go-set v1.0.3-0.20200225121959-cc7b2070d91e h1:7q6NSFZDeGfvvtIRwBrU/aegEYJYmvev0cHAwo17zZQ=
 github.com/scylladb/go-set v1.0.3-0.20200225121959-cc7b2070d91e/go.mod h1:DkpGd78rljTxKAnTDPFqXSGxvETQnJyuSOQwsHycqfs=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=