diff --git a/.appveyor.yml b/.appveyor.yml
deleted file mode 100644
index 880b8e1..0000000
--- a/.appveyor.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-version: '{build}'
-
-image: Visual Studio 2015
-
-cache:
-  - NimBinaries
-
-matrix:
-  # We always want 32 and 64-bit compilation
-  fast_finish: false
-
-platform:
-  - x86
-  - x64
-
-# when multiple CI builds are queued, the tested commit needs to be in the last X commits cloned with "--depth X"
-clone_depth: 10
-
-install:
-  # use the newest versions documented here: https://www.appveyor.com/docs/windows-images-software/#mingw-msys-cygwin
-  - IF "%PLATFORM%" == "x86" SET PATH=C:\mingw-w64\i686-6.3.0-posix-dwarf-rt_v5-rev1\mingw32\bin;%PATH%
-  - IF "%PLATFORM%" == "x64" SET PATH=C:\mingw-w64\x86_64-8.1.0-posix-seh-rt_v6-rev0\mingw64\bin;%PATH%
-
-  # build nim from our own branch - this to avoid the day-to-day churn and
-  # regressions of the fast-paced Nim development while maintaining the
-  # flexibility to apply patches
-  - curl -O -L -s -S https://raw.githubusercontent.com/status-im/nimbus-build-system/master/scripts/build_nim.sh
-  - env MAKE="mingw32-make -j2" ARCH_OVERRIDE=%PLATFORM% bash build_nim.sh Nim csources dist/nimble NimBinaries
-  - SET PATH=%CD%\Nim\bin;%PATH%
-
-build_script:
-  - cd C:\projects\%APPVEYOR_PROJECT_SLUG%
-  - nimble install -y
-
-test_script:
-  - nimble test
-
-deploy: off
-
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c98eaf3..8428a2b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -96,7 +96,7 @@ jobs:
       - name: Restore Nim DLLs dependencies (Windows) from cache
         if: runner.os == 'Windows'
         id: windows-dlls-cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: external/dlls-${{ matrix.target.cpu }}
           key: 'dlls-${{ matrix.target.cpu }}'
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 9ee1b9e..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,27 +0,0 @@
-language: c
-
-# https://docs.travis-ci.com/user/caching/
-cache:
-  directories:
-    - NimBinaries
-
-git:
-  # when multiple CI builds are queued, the tested commit needs to be in the last X commits cloned with "--depth X"
-  depth: 10
-
-os:
-  - linux
-  - osx
-
-install:
-  # build nim from our own branch - this to avoid the day-to-day churn and
-  # regressions of the fast-paced Nim development while maintaining the
-  # flexibility to apply patches
-  - curl -O -L -s -S https://raw.githubusercontent.com/status-im/nimbus-build-system/master/scripts/build_nim.sh
-  - env MAKE="make -j2" bash build_nim.sh Nim csources dist/nimble NimBinaries
-  - export PATH=$PWD/Nim/bin:$PATH
-
-script:
-  - nimble install -y
-  - nimble test
-
diff --git a/README.md b/README.md
index f7d3700..48be9b9 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,5 @@
 # nim-json-serialization
 
-[![Build Status (Travis)](https://img.shields.io/travis/status-im/nim-json-serialization/master.svg?label=Linux%20/%20macOS "Linux/macOS build status (Travis)")](https://travis-ci.org/status-im/nim-json-serialization)
-[![Windows build status (Appveyor)](https://img.shields.io/appveyor/ci/nimbus/nim-json-serialization/master.svg?label=Windows "Windows build status (Appveyor)")](https://ci.appveyor.com/project/nimbus/nim-json-serialization)
 [![License: Apache](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
 ![Stability: experimental](https://img.shields.io/badge/stability-experimental-orange.svg)
diff --git a/json_serialization.nimble b/json_serialization.nimble
index d2dc855..b819254 100644
--- a/json_serialization.nimble
+++ b/json_serialization.nimble
@@ -1,7 +1,7 @@
 mode = ScriptMode.Verbose
 
 packageName   = "json_serialization"
-version       = "0.1.0"
+version       = "0.1.5"
 author        = "Status Research & Development GmbH"
 description   = "Flexible JSON serialization not relying on run-time type information"
 license       = "Apache License 2.0"