diff --git a/build.py b/build.py
index ddc3a801..8f515066 100644
--- a/build.py
+++ b/build.py
@@ -14,7 +14,6 @@ if __name__ == "__main__":
         build_policy = ["mp-units", "outdated"],
         upload_dependencies = "all",
         pip_install = ["sphinx", "recommonmark", "breathe"],
-        docker_entry_script = "sudo apt-get -qq update && sudo apt-get install -y libtinfo5",
 
         # build configurations
         archs = ["x86_64"], #  limit to 64-bit only
diff --git a/conanfile.py b/conanfile.py
index 158c8424..319c4d05 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -105,7 +105,7 @@ class UnitsConan(ConanFile):
     def build_requirements(self):
         if self._run_tests:
             self.build_requires("catch2/2.13.0")
-            self.build_requires("doxygen/1.8.18")
+            self.build_requires("doxygen/1.8.20")
             self.build_requires("linear_algebra/0.7.0@public-conan/stable")
 
     def build(self):
diff --git a/docs/usage.rst b/docs/usage.rst
index 880ba8b6..8f67ba09 100644
--- a/docs/usage.rst
+++ b/docs/usage.rst
@@ -351,7 +351,6 @@ in **mp-units** repository, you should:
     conan remote add linear-algebra https://api.bintray.com/conan/twonington/public-conan
     git clone https://github.com/mpusz/units.git && cd units
     pip3 install -r docs/requirements.txt
-    sudo apt-get -qq update && sudo apt-get install -y libtinfo5 graphviz
     mkdir build && cd build
     conan install .. -pr <your_conan_profile> -s compiler.cppstd=20 -e mp-units:CONAN_RUN_TESTS=True -b outdated -u
     cmake .. -DCMAKE_BUILD_TYPE=Release