diff --git a/.github/actions/bootstrap/action.yaml b/.github/actions/bootstrap/action.yaml
index df71a17c..20716625 100644
--- a/.github/actions/bootstrap/action.yaml
+++ b/.github/actions/bootstrap/action.yaml
@@ -4,7 +4,7 @@ inputs:
   go-version:
     description: "Go version to install"
     required: true
-    default: "1.20.x"
+    default: "1.21.x"
   use-go-cache:
     description: "Restore go cache"
     required: true
diff --git a/Makefile b/Makefile
index 8759e2a0..dbe70aec 100644
--- a/Makefile
+++ b/Makefile
@@ -118,7 +118,7 @@ bootstrap: bootstrap-go bootstrap-tools ## Download and install all go dependenc
 #	CI=true $(BUILD_PATH) dive-example:latest --ci-config .data/.dive-ci
 #
 #dev:
-#	docker run -ti --rm -v $(PWD):/app -w /app -v dive-pkg:/go/pkg/ golang:1.13 bash
+#	docker run -ti --rm -v $(PWD):/app -w /app -v dive-pkg:/go/pkg/ golang:1.21 bash
 #
 #build: gofmt
 #	go build -o $(BUILD_PATH)
diff --git a/go.mod b/go.mod
index a3fa807a..aecd005e 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/wagoodman/dive
 
-go 1.19
+go 1.21
 
 require (
 	github.com/awesome-gocui/gocui v1.1.0
diff --git a/go.sum b/go.sum
index 729cb9e4..3caf7c34 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,6 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8=
+github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/Microsoft/go-winio v0.4.14 h1:+hMXMk01us9KgxGb7ftKQt2Xpf5hH/yky+TDA+qxleU=
@@ -70,6 +71,7 @@ github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=