diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..d98df5f
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,67 @@
+# install:
+#   - sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
+
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+jobs:
+  test:
+    name: OTP-${{matrix.otp}}, OS-${{matrix.os}}
+    runs-on: ${{matrix.os}}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - "ubuntu-20.04"
+        rebar3: ["3.18.0"]
+        otp:
+          - "25.1"
+          - "24.3"
+          - "23.3"
+          - "22.3"
+        include:
+          - otp: "21.3"
+            rebar3: "3.15.2"
+            os: "ubuntu-20.04"
+    env:
+      SHELL: /bin/sh            # needed for erlexec
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{matrix.otp}}
+          rebar3-version: ${{matrix.rebar3}}
+
+      - name: compile
+        run: rebar3 compile
+
+      - name: xref
+        run: rebar3 xref
+
+      - name: eunit
+        run: rebar3 eunit
+
+      - name: ct
+        run: rebar3 ct
+
+      - name: dialyzer
+        run: rebar3 dialyzer
+
+      - name: proper
+        run: rebar3 proper
+
+      - name: Upload test logs artifact
+        uses: actions/upload-artifact@v2
+        if: failure()
+        with:
+          name: test_logs_otp-${{matrix.otp}}
+          path: |
+            _build/test/logs/*
+            !_build/test/logs/ct_run*/datadir
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 7ce6915..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-sudo: required
-language: erlang
-otp_release:
-  - 23.3.1
-  - 22.3
-  - 21.3
-  #- 20.3 not supported (erlang:get_stacktrace/0)
-  #- 19.3 not supported (string:lexemes/2)
-  #- 18.3 not supported (string:lexemes/2, tricky binary comprehension, map typespec with `:=`, ?assertEqual/3)
-install:
-  - sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
-script:
-  - ./rebar3 compile
-  - ./rebar3 xref
-  - ./rebar3 eunit
-  - ./rebar3 ct
-  - ./rebar3 dialyzer
-  - ./rebar3 proper
diff --git a/rebar3 b/rebar3
index 69fb786..a83d554 100755
Binary files a/rebar3 and b/rebar3 differ
diff --git a/test/mtp_test_metric.erl b/test/mtp_test_metric.erl
index 9c6cb8e..c9a7c9d 100644
--- a/test/mtp_test_metric.erl
+++ b/test/mtp_test_metric.erl
@@ -33,6 +33,7 @@ notify(Type, Name, Value, Extra) ->
 get(Type, Name) ->
     get(Type, Name, #{}).
 
+-spec get(count | gauge | histogram, [atom()], [atom()]) -> integer() | not_found.
 get(Type, Name, Extra) ->
     gen_server:call(?MODULE, {get, Type, Name, Extra}).
 
diff --git a/test/single_dc_SUITE.erl b/test/single_dc_SUITE.erl
index a164e6d..e07cfde 100644
--- a/test/single_dc_SUITE.erl
+++ b/test/single_dc_SUITE.erl
@@ -436,9 +436,13 @@ policy_max_conns_case(Cfg) when is_list(Cfg) ->
     Secret = ?config(mtp_secret, Cfg),
     SureClose =
         fun(Cli) ->
+                timer:sleep(500),               %FIXME: sometimes metric returns not_found
                 PreClosed =
-                    mtp_test_metric:get_tags(
-                      count, [?APP, in_connection_closed, total], [?FUNCTION_NAME]),
+                    case mtp_test_metric:get_tags(
+                      count, [?APP, in_connection_closed, total], [?FUNCTION_NAME]) of
+                        not_found -> 0;
+                        N -> N
+                    end,
                 ok = mtp_test_client:close(Cli),
                 ok = mtp_test_metric:wait_for_value(
                        count, [?APP, in_connection_closed, total], [?FUNCTION_NAME], PreClosed + 1, 5000)