diff --git a/.travis.yml b/.travis.yml
index 69f0462..5cfd5d2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,8 +13,6 @@ script:
         - diff -u <(echo -n) <(gofmt -d -s .)
         - diff -u <(echo -n) <(./internal/scripts/autogen_licences.sh .)
         - diff -u <(echo -n) <(golint ./...)
-after_success:
-        - ./internal/scripts/coverage.sh
 env:
   global:
-  - CGO_ENABLED=0
+        - CGO_ENABLED=0
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3128f02..0fb97f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.12.1] - 20-Jun-2020
+
+### Fixed
+
+- the `tcell` unit test can now pass in headless mode (when TERM="") which
+  happens under bazel.
+- switching coveralls integration to Github application.
+
 ## [0.12.0] - 10-Apr-2020
 
 ### Added
@@ -325,7 +333,8 @@ identifiers shouldn't be used externally.
 - The Gauge widget.
 - The Text widget.
 
-[unreleased]: https://github.com/mum4k/termdash/compare/v0.12.0...devel
+[unreleased]: https://github.com/mum4k/termdash/compare/v0.12.1...devel
+[0.12.1]: https://github.com/mum4k/termdash/compare/v0.12.0...v0.12.1
 [0.12.0]: https://github.com/mum4k/termdash/compare/v0.11.0...v0.12.0
 [0.11.0]: https://github.com/mum4k/termdash/compare/v0.10.0...v0.11.0
 [0.10.0]: https://github.com/mum4k/termdash/compare/v0.9.1...v0.10.0
diff --git a/private/scripts/coverage.sh b/private/scripts/coverage.sh
deleted file mode 100755
index 8b65ed9..0000000
--- a/private/scripts/coverage.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/bash
-
-go get github.com/go-playground/overalls && go get github.com/mattn/goveralls
-
-overalls -project=github.com/mum4k/termdash -covermode=count
-goveralls -coverprofile=overalls.coverprofile -service travis-ci
diff --git a/terminal/tcell/tcell.go b/terminal/tcell/tcell.go
index 048453f..235954c 100644
--- a/terminal/tcell/tcell.go
+++ b/terminal/tcell/tcell.go
@@ -16,6 +16,7 @@ package tcell
 
 import (
 	"context"
+	"fmt"
 	"image"
 
 	"github.com/gdamore/tcell"
@@ -79,11 +80,14 @@ type Terminal struct {
 	clearStyle *cell.Options
 }
 
+// tcellNewScreen can be overridden from tests.
+var tcellNewScreen = tcell.NewScreen
+
 // newTerminal creates the terminal and applies the options.
 func newTerminal(opts ...Option) (*Terminal, error) {
-	screen, err := tcell.NewScreen()
+	screen, err := tcellNewScreen()
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("tcell.NewScreen => %v", err)
 	}
 
 	t := &Terminal{
diff --git a/terminal/tcell/tcell_test.go b/terminal/tcell/tcell_test.go
index 6b8d79d..6a2bdca 100644
--- a/terminal/tcell/tcell_test.go
+++ b/terminal/tcell/tcell_test.go
@@ -17,6 +17,7 @@ package tcell
 import (
 	"testing"
 
+	"github.com/gdamore/tcell"
 	"github.com/kylelemons/godebug/pretty"
 	"github.com/mum4k/termdash/cell"
 	"github.com/mum4k/termdash/terminal/terminalapi"
@@ -45,11 +46,13 @@ func TestNewTerminalColorMode(t *testing.T) {
 		},
 	}
 
+	tcellNewScreen = func() (tcell.Screen, error) { return nil, nil }
 	for _, tc := range tests {
 		t.Run(tc.desc, func(t *testing.T) {
 			got, err := newTerminal(tc.opts...)
 			if err != nil {
 				t.Errorf("newTerminal => unexpected error:\n%v", err)
+				return
 			}
 
 			// Ignore these fields.
@@ -96,11 +99,13 @@ func TestNewTerminalClearStyle(t *testing.T) {
 		},
 	}
 
+	tcellNewScreen = func() (tcell.Screen, error) { return nil, nil }
 	for _, tc := range tests {
 		t.Run(tc.desc, func(t *testing.T) {
 			got, err := newTerminal(tc.opts...)
 			if err != nil {
 				t.Errorf("newTerminal => unexpected error:\n%v", err)
+				return
 			}
 
 			// Ignore these fields.