diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c6fb557e9..6bd3183c8 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -163,10 +163,7 @@ jobs:
           ninja
 
   java-binding:
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [macos-10.15, ubuntu-18.04]
+    runs-on: macos-10.15
     steps:
       - uses: actions/checkout@v2
       - name: Bootstrap
diff --git a/include/commissioner/defines.hpp b/include/commissioner/defines.hpp
index 2c90e0064..ef6042785 100644
--- a/include/commissioner/defines.hpp
+++ b/include/commissioner/defines.hpp
@@ -161,7 +161,7 @@ static constexpr uint8_t kRadioChannelPage2 = 2;
 /**
  * Type alias of raw byte array.
  */
-typedef std::vector<uint8_t> ByteArray;
+using ByteArray = std::vector<uint8_t>;
 
 } // namespace commissioner
 
diff --git a/include/commissioner/network_data.hpp b/include/commissioner/network_data.hpp
index ffd8c7919..c7d3efc7b 100644
--- a/include/commissioner/network_data.hpp
+++ b/include/commissioner/network_data.hpp
@@ -185,7 +185,7 @@ struct ChannelMaskEntry
     ByteArray mMasks;
 };
 
-typedef std::vector<ChannelMaskEntry> ChannelMask;
+using ChannelMask = std::vector<ChannelMaskEntry>;
 
 /**
  * A SecurityPolicy includes RotationTime and SecurityFlags.
diff --git a/script/bootstrap.sh b/script/bootstrap.sh
index d5e2eaa5f..eae5f136f 100755
--- a/script/bootstrap.sh
+++ b/script/bootstrap.sh
@@ -94,7 +94,7 @@ elif [ "$(uname)" = "Darwin" ]; then
                  llvm@10 \
                  cmake \
                  ninja \
-                 swig \
+                 swig@4 \
                  lcov && true
 
     sudo ln -s "$(brew --prefix llvm@10)/bin/clang-format" /usr/local/bin/clang-format-10
diff --git a/src/java/CMakeLists.txt b/src/java/CMakeLists.txt
index fb8b9b482..57c9edf39 100644
--- a/src/java/CMakeLists.txt
+++ b/src/java/CMakeLists.txt
@@ -29,7 +29,7 @@
 set(JAVA_PACKAGE_NAME io.openthread.commissioner)
 set(JAVA_OUTFILE_DIR ${CMAKE_CURRENT_BINARY_DIR}/io/openthread/commissioner)
 
-find_package(SWIG 3.0 REQUIRED)
+find_package(SWIG 4.0 REQUIRED)
 find_package(Java REQUIRED)
 
 if (NOT OT_COMM_ANDROID)