diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index a4db3aa10..da9988be1 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -2,6 +2,7 @@
 # GitHub Actions Workflow for Boost.Geometry to build documentation
 #
 # Copyright (c) 2020 Mateusz Loskot <mateusz@loskot.net>
+# Copyright (c) 2020 Adam Wulkiewicz, Lodz, Poland
 #
 # Use, modification and distribution is subject to the Boost Software License,
 # Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
@@ -31,12 +32,12 @@ jobs:
       id: setenv
       run: |
         if [[ "$GITHUB_REF" == *master ]]; then
-          echo "::set-env name=BOOST_BRANCH::master"
+          echo "BOOST_BRANCH=master" >> $GITHUB_ENV
         else
-          echo "::set-env name=BOOST_BRANCH::develop"
+          echo "BOOST_BRANCH=develop" >> $GITHUB_ENV
         fi
-        echo "::set-env name=BOOST_SELF::$(basename $GITHUB_WORKSPACE)"
-        echo "::set-env name=BOOST_ROOT::$GITHUB_WORKSPACE/boost-root"
+        echo "BOOST_SELF=$(basename $GITHUB_WORKSPACE)" >> $GITHUB_ENV
+        echo "BOOST_ROOT=$GITHUB_WORKSPACE/boost-root" >> $GITHUB_ENV
         echo "::set-output name=boost_self::$(basename $GITHUB_WORKSPACE)"
         echo "::set-output name=boost_root::$GITHUB_WORKSPACE/boost-root"
 
diff --git a/.github/workflows/minimal-clang.yml b/.github/workflows/minimal-clang.yml
index 9b8b71185..cceca7af6 100644
--- a/.github/workflows/minimal-clang.yml
+++ b/.github/workflows/minimal-clang.yml
@@ -2,6 +2,7 @@
 # GitHub Actions Workflow for Boost.Geometry to build minimal tests with Clang
 #
 # Copyright (c) 2020 Mateusz Loskot <mateusz@loskot.net>
+# Copyright (c) 2020 Adam Wulkiewicz, Lodz, Poland
 #
 # Use, modification and distribution is subject to the Boost Software License,
 # Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
@@ -61,12 +62,12 @@ jobs:
         id: setenv
         run: |
           if [[ "$GITHUB_REF" == *master ]]; then
-            echo "::set-env name=BOOST_BRANCH::master"
+            echo "BOOST_BRANCH=master" >> $GITHUB_ENV
           else
-            echo "::set-env name=BOOST_BRANCH::develop"
+            echo "BOOST_BRANCH=develop" >> $GITHUB_ENV
           fi
-          echo "::set-env name=BOOST_SELF::$(basename $GITHUB_WORKSPACE)"
-          echo "::set-env name=BOOST_ROOT::$GITHUB_WORKSPACE/boost-root"
+          echo "BOOST_SELF=$(basename $GITHUB_WORKSPACE)" >> $GITHUB_ENV
+          echo "BOOST_ROOT=$GITHUB_WORKSPACE/boost-root" >> $GITHUB_ENV
           echo "::set-output name=boost_self::$(basename $GITHUB_WORKSPACE)"
           echo "::set-output name=boost_root::$GITHUB_WORKSPACE/boost-root"
 
diff --git a/.github/workflows/minimal-gcc.yml b/.github/workflows/minimal-gcc.yml
index 91323d814..72e8288ab 100644
--- a/.github/workflows/minimal-gcc.yml
+++ b/.github/workflows/minimal-gcc.yml
@@ -2,6 +2,7 @@
 # GitHub Actions Workflow for Boost.Geometry to build minimal tests with GCC
 #
 # Copyright (c) 2020 Mateusz Loskot <mateusz@loskot.net>
+# Copyright (c) 2020 Adam Wulkiewicz, Lodz, Poland
 #
 # Use, modification and distribution is subject to the Boost Software License,
 # Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
@@ -49,12 +50,12 @@ jobs:
         id: setenv
         run: |
           if [[ "$GITHUB_REF" == *master ]]; then
-            echo "::set-env name=BOOST_BRANCH::master"
+            echo "BOOST_BRANCH=master" >> $GITHUB_ENV
           else
-            echo "::set-env name=BOOST_BRANCH::develop"
+            echo "BOOST_BRANCH=develop" >> $GITHUB_ENV
           fi
-          echo "::set-env name=BOOST_SELF::$(basename $GITHUB_WORKSPACE)"
-          echo "::set-env name=BOOST_ROOT::$GITHUB_WORKSPACE/boost-root"
+          echo "BOOST_SELF=$(basename $GITHUB_WORKSPACE)" >> $GITHUB_ENV
+          echo "BOOST_ROOT=$GITHUB_WORKSPACE/boost-root" >> $GITHUB_ENV
           echo "::set-output name=boost_self::$(basename $GITHUB_WORKSPACE)"
           echo "::set-output name=boost_root::$GITHUB_WORKSPACE/boost-root"
 
diff --git a/.github/workflows/minimal-msvc.yml b/.github/workflows/minimal-msvc.yml
index f442d2721..147865a9b 100644
--- a/.github/workflows/minimal-msvc.yml
+++ b/.github/workflows/minimal-msvc.yml
@@ -2,6 +2,7 @@
 # GitHub Actions Workflow for Boost.Geometry to build minimal tests with MSVC
 #
 # Copyright (c) 2020 Mateusz Loskot <mateusz@loskot.net>
+# Copyright (c) 2020 Adam Wulkiewicz, Lodz, Poland
 #
 # Use, modification and distribution is subject to the Boost Software License,
 # Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
@@ -34,13 +35,13 @@ jobs:
         id: setenv
         shell: pwsh
         run: |
-          if ("$GITHUB_REF" -contains "master") {
-            echo "::set-env name=BOOST_BRANCH::master"
+          if ("$env:GITHUB_REF" -contains "master") {
+            echo "BOOST_BRANCH=master" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
           } else {
-            echo "::set-env name=BOOST_BRANCH::develop"
+            echo "BOOST_BRANCH=develop" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
           }
-          echo "::set-env name=BOOST_SELF::$((Get-Item $env:GITHUB_WORKSPACE).BaseName)"
-          echo "::set-env name=BOOST_ROOT::$env:GITHUB_WORKSPACE\boost-root"
+          echo "BOOST_SELF=$((Get-Item $env:GITHUB_WORKSPACE).BaseName)" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
+          echo "BOOST_ROOT=$env:GITHUB_WORKSPACE\boost-root" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
           echo "::set-output name=boost_self::$((Get-Item $env:GITHUB_WORKSPACE).BaseName)"
           echo "::set-output name=boost_root::$env:GITHUB_WORKSPACE\boost-root"