diff --git a/.bazelci/presubmit.yml b/.bazelci/presubmit.yml
index ab6d36b24..bfc967168 100644
--- a/.bazelci/presubmit.yml
+++ b/.bazelci/presubmit.yml
@@ -3,12 +3,12 @@ validate_config: 1
 tasks:
   ubuntu1804:
     environment:
-      GO_HOME: "$HOME/go-1.19.5"
+      GO_HOME: "$HOME/go-1.20.7"
       PATH: "$PATH:$GO_HOME/bin"
     shell_commands:
-      - "echo --- Downloading and extracting Go 1.19.5 to $GO_HOME"
+      - "echo --- Downloading and extracting Go 1.20.7 to $GO_HOME"
       - "mkdir $GO_HOME"
-      - "curl https://mirror.bazel.build/golang.org/dl/go1.19.5.linux-amd64.tar.gz | tar xvz --strip-components=1 -C $GO_HOME"
+      - "curl https://mirror.bazel.build/go.dev/dl/go1.20.7.linux-amd64.tar.gz | tar xvz --strip-components=1 -C $GO_HOME"
       - "echo +++ Check go format"
       - "./check-gofmt.sh `find go -name '*.go'`"
       - "./check-golint.sh"
@@ -23,12 +23,12 @@ tasks:
     platform: ubuntu1804
     name: "go build / test"
     environment:
-      GO_HOME: "$HOME/go-1.19.5"
+      GO_HOME: "$HOME/go-1.20.7"
       PATH: "$PATH:$GO_HOME/bin"
     shell_commands:
-      - "echo --- Downloading and extracting Go 1.19.5 to $GO_HOME"
+      - "echo --- Downloading and extracting Go 1.20.7 to $GO_HOME"
       - "mkdir $GO_HOME"
-      - "curl https://mirror.bazel.build/golang.org/dl/go1.19.5.linux-amd64.tar.gz | tar xvz --strip-components=1 -C $GO_HOME"
+      - "curl https://mirror.bazel.build/go.dev/dl/go1.20.7.linux-amd64.tar.gz | tar xvz --strip-components=1 -C $GO_HOME"
       - "echo +++ Running go build"
       - "go build ./..."
       - "echo +++ Running go test"
diff --git a/WORKSPACE b/WORKSPACE
index 270f2e5c5..6cfa19ab9 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -25,7 +25,7 @@ load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_depe
 
 go_rules_dependencies()
 
-go_register_toolchains(version = "1.19.8")
+go_register_toolchains(version = "1.20.7")
 
 # Need "build_file_proto_mode" argument.
 go_repository(
diff --git a/go.mod b/go.mod
index 77cbb6e36..9a5b749a5 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/bazelbuild/remote-apis-sdks
 
-go 1.19
+go 1.20
 
 require (
 	github.com/bazelbuild/remote-apis v0.0.0-20230411132548-35aee1c4a425
diff --git a/go/pkg/reader/reader_test.go b/go/pkg/reader/reader_test.go
index 2bf54824b..2bb1a2d5f 100644
--- a/go/pkg/reader/reader_test.go
+++ b/go/pkg/reader/reader_test.go
@@ -39,6 +39,7 @@ func TestFileReaderSeeks(t *testing.T) {
 	}
 
 	for _, tc := range tests {
+		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
 			path, err := testutil.CreateFile(t, false, tc.blob)