diff --git a/CI/appveyor/appveyor-debug.yml b/CI/appveyor/appveyor-debug.yml
index 687989d..2ccb60e 100644
--- a/CI/appveyor/appveyor-debug.yml
+++ b/CI/appveyor/appveyor-debug.yml
@@ -29,6 +29,7 @@ install:
     
     - vcpkg install python3:x64-windows-static
     - vcpkg install sfml:x64-windows-static
+    - vcpkg install liblemon:x64-windows-static
     - vcpkg install gtest:x64-windows-static
 
 cache: c:\tools\vcpkg\installed
diff --git a/CI/appveyor/appveyor-release.yml b/CI/appveyor/appveyor-release.yml
index 7dbf573..5f6ac23 100644
--- a/CI/appveyor/appveyor-release.yml
+++ b/CI/appveyor/appveyor-release.yml
@@ -35,6 +35,7 @@ install:
 
     - vcpkg install "python3:%platform%-windows"
     - vcpkg install "python3:%platform%-windows-static"
+    - vcpkg install "liblemon:&platform%-windows-static"
     - vcpkg install "sfml:%platform%-windows-static"
     - vcpkg install "gtest:%platform%-windows-static"
 
diff --git a/CI/travis/install_dependencies.sh b/CI/travis/install_dependencies.sh
index 8dfd932..22ae440 100755
--- a/CI/travis/install_dependencies.sh
+++ b/CI/travis/install_dependencies.sh
@@ -21,3 +21,13 @@ if [ ! -d /home/travis/vcpkg/.git ]; then
     ./vcpkg integrate install
     ./vcpkg install gtest
 fi
+
+cd ~
+wget http://lemon.cs.elte.hu/pub/sources/lemon-1.3.1.tar.gz
+tar zxf lemon-1.3.1.tar.gz
+cd lemon-1.3.1
+mkdir build
+cd build
+cmake ..
+make
+sudo make install