diff --git a/Dockerfile b/Dockerfile
index 0db1e47e..6b90ba91 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -235,6 +235,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 #
 # First, add system deps for building¹:
 # - gcc: C compiler.
+# - libc6-dev: C libraries and header files.
 # - libopenblas-dev: Contains optimized versions of BLAS and LAPACK.
 # - libsuitesparse-dev: Contains SuiteSparse.
 #
@@ -246,6 +247,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 RUN if [ "$TARGETPLATFORM" = "linux/arm64" ]; then \
       apt-get update && apt-get install -y --no-install-recommends \
           gcc \
+          libc6-dev \
           libopenblas-dev \
           libsuitesparse-dev \
    && CVXOPT_SUITESPARSE_INC_DIR=/usr/include/suitesparse \