diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d332b11..40e9d38 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,6 +15,7 @@ jobs:
     strategy:
       matrix:
         version:
+          - '1.6'
           - '1'
           - 'nightly'
         os:
@@ -32,6 +33,6 @@ jobs:
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v2
         with:
-          file: lcov.info
+          files: lcov.info
diff --git a/LICENSE b/LICENSE
index c258f94..dc3034d 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021 Fredrik Ekre
+Copyright (c) 2021-2022 Fredrik Ekre
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index fc357b8..91609f6 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,8 @@
 # TeeStreams
 
+[![CI][gh-actions-img]][gh-actions-url]
+[![codecov][codecov-img]][codecov-url]
+
 Simplify writing to multiple streams at once.
 
 ## Usage
@@ -68,3 +71,10 @@ expected_shasum = "f190c938dd6fed97021953240523c9db448ec0a6760b574afd4e9924ab561
 
 download_verify(url, expected_shasum)
 ```
+
+
+[gh-actions-img]: https://github.com/fredrikekre/TeeStreams.jl/actions/workflows/ci.yml/badge.svg?branch=master&event=push
+[gh-actions-url]: https://github.com/fredrikekre/TeeStreams.jl/actions/workflows/ci.yml
+
+[codecov-img]: https://codecov.io/gh/fredrikekre/TeeStreams.jl/branch/master/graph/badge.svg?token=K7C8OASVZR
+[codecov-url]: https://codecov.io/gh/fredrikekre/TeeStreams.jl
diff --git a/src/TeeStreams.jl b/src/TeeStreams.jl
index 42c5e38..5983c29 100644
--- a/src/TeeStreams.jl
+++ b/src/TeeStreams.jl
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: MIT
+
 module TeeStreams
 
 export TeeStream
diff --git a/test/runtests.jl b/test/runtests.jl
index 5c48a3f..e163570 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: MIT
+
 using TeeStreams, Test, SimpleBufferStream, HTTP,
       CodecZlib, CodecZstd, SHA, Tar
 
@@ -35,11 +37,12 @@ end
     bs = BufferStream()
     tee = TeeStream(iob, ioc, iof, bs)
     write_things(tee)
+    flush(tee)
     close(iof); close(bs)
     @test String(take!(iob)) == String(take!(ioc.io)) ==
           read(f, String) == read(bs, String) == correct
+    close(tee)
     try
-        close(tee)
         write_things(tee)
     catch err
         @test err isa CompositeException
@@ -57,6 +60,7 @@ end
         @test isopen(io2)
         TeeStream(io1, io2) do tee
             write_things(tee)
+            flush(tee)
         end
         @test !isopen(io1)
         @test !isopen(io2)