diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index 4cc1c0016..628b36f03 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -21,24 +21,25 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
     - name: Set up JDK 11
-      uses: actions/setup-java@v1
+      uses: actions/setup-java@v3
       with:
+        distribution: 'temurin'
         java-version: '11'
     - name: Install GNU gettext
       run: sudo apt install gettext
     - name: Build with Gradle
       run: cd build/android; ./gradlew assemblerelease
     - name: Save armeabi artifact
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v3
       with:
         name: MultiCraft-armeabi-v7a.apk
         path: build/android/app/build/outputs/apk/release/app-armeabi-v7a-release-unsigned.apk
     - name: Save arm64 artifact
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v3
       with:
         name: MultiCraft-arm64-v8a.apk
         path: build/android/app/build/outputs/apk/release/app-arm64-v8a-release-unsigned.apk
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a202a156e..2c1f39f72 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -50,7 +50,7 @@ jobs:
 
   # This is the current gcc compiler (available in bionic)
   gcc_8:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - name: Install deps
@@ -93,7 +93,7 @@ jobs:
 
   # This is the current clang version
   clang_9:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - name: Install deps
@@ -171,7 +171,7 @@ jobs:
 
   docker:
     name: "Docker image"
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - name: Build docker image
@@ -180,7 +180,7 @@ jobs:
 
   win32:
     name: "MinGW cross-compiler (32-bit)"
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - name: Install compiler
@@ -198,7 +198,7 @@ jobs:
 
   win64:
     name: "MinGW cross-compiler (64-bit)"
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - name: Install compiler
@@ -218,9 +218,9 @@ jobs:
     name: VS 2019 ${{ matrix.config.arch }}-${{ matrix.type }}
     runs-on: windows-2019
     env:
-      VCPKG_VERSION: 5568f110b509a9fd90711978a7cb76bae75bb092
-#                    2021.05.12
-      vcpkg_packages: irrlicht zlib curl[winssl] openal-soft libvorbis libogg sqlite3 freetype luajit
+      VCPKG_VERSION: af2287382b1991dbdcb7e5112d236f3323b9dd7a
+#                    2022.03.10
+      vcpkg_packages: irrlicht zlib curl[winssl] openal-soft libvorbis libogg sqlite3 freetype luajit libiconv gettext jsoncpp
     strategy:
       fail-fast: false
       matrix:
@@ -259,6 +259,7 @@ jobs:
           -DCMAKE_TOOLCHAIN_FILE="${{ github.workspace }}\vcpkg\scripts\buildsystems\vcpkg.cmake"  `
           -DCMAKE_BUILD_TYPE=Release  `
           -DENABLE_POSTGRESQL=OFF  `
+          -DENABLE_SYSTEM_JSONCPP=ON  `
           -DRUN_IN_PLACE=${{ contains(matrix.type, 'portable') }} .
 
       - name: Build
@@ -280,7 +281,7 @@ jobs:
       - name: Package Clean
         run: rm -r $env:GITHUB_WORKSPACE\Package\_CPack_Packages
 
-      - uses: actions/upload-artifact@v1
+      - uses: actions/upload-artifact@v3
         with:
           name: msvc-${{ matrix.config.arch }}-${{ matrix.type }}
           path: .\Package\
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c85d9549c..94ff0cd03 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,9 +6,10 @@ cmake_policy(SET CMP0025 OLD)
 project(multicraft)
 set(PROJECT_NAME_CAPITALIZED "MultiCraft")
 
-set(CMAKE_CXX_STANDARD 11)
-set(GCC_MINIMUM_VERSION "4.8")
-set(CLANG_MINIMUM_VERSION "3.4")
+set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD_REQUIRED TRUE)
+set(GCC_MINIMUM_VERSION "5.1")
+set(CLANG_MINIMUM_VERSION "3.5")
 
 # Also remember to set PROTOCOL_VERSION in network/networkprotocol.h when releasing
 set(VERSION_MAJOR 2)
diff --git a/Dockerfile b/Dockerfile
index 1732f4d55..3d235cc70 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.11
+FROM alpine:3.14
 
 ENV MINETEST_GAME_VERSION master
 
@@ -49,7 +49,7 @@ RUN mkdir build && \
 	make -j2 && \
 	make install
 
-FROM alpine:3.11
+FROM alpine:3.14
 
 RUN apk add --no-cache sqlite-libs curl gmp libstdc++ libgcc libpq luajit && \
 	adduser -D multicraft --uid 30000 -h /var/lib/multicraft && \
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index c925d348e..67c74f253 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -737,7 +737,6 @@ if(MSVC)
 	endif()
 else()
 	# GCC or compatible compilers such as Clang
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
 	if(WARN_ALL)
 		set(RELEASE_WARNING_FLAGS "-Wall")
 	else()