diff --git a/.github/workflows/ci.cross.arm.yml b/.github/workflows/ci.cross.arm.yml
index 5095c91d..a020fcc7 100644
--- a/.github/workflows/ci.cross.arm.yml
+++ b/.github/workflows/ci.cross.arm.yml
@@ -33,7 +33,7 @@ jobs:
             install-cross-compiler: g++-aarch64-linux-gnu gcc-aarch64-linux-gnu binutils-aarch64-linux-gnu
             target: aarch64-linux-gnu
           - task: rpi3:build.cross
-            install-cross-compiler: gcc-arm-none-eabi binutils-arm-none-eabi
+            install-cross-compiler: gcc-arm-none-eabi binutils-arm-none-eabi libnewlib-arm-none-eabi
             target: arm-none-eabi
     steps:
       - uses: actions/checkout@v3
diff --git a/docker/Dockerfile.arm b/docker/Dockerfile.arm
index 264ae86d..975b6ef5 100644
--- a/docker/Dockerfile.arm
+++ b/docker/Dockerfile.arm
@@ -14,7 +14,7 @@ FROM base AS setup
 RUN setup-cpp --clangtidy true --clangformat true --cmake true --ninja true --ccache true --cppcheck true --vcpkg true --conan true --task true 
 
 RUN apt-get update && apt-get install -y \
-    gcc-arm-none-eabi binutils-arm-none-eabi \
+    gcc-arm-none-eabi binutils-arm-none-eabi libnewlib-arm-none-eabi \
     && rm -rf /var/lib/apt/lists/*
 
 COPY ./docker/entrypoint.sh /docker-entrypoint.sh