diff --git a/ubuntu/Dockerfile.buildenv.ubuntu b/ubuntu/Dockerfile.buildenv.ubuntu
index fc7a0e8..87bdcf5 100644
--- a/ubuntu/Dockerfile.buildenv.ubuntu
+++ b/ubuntu/Dockerfile.buildenv.ubuntu
@@ -18,7 +18,7 @@ RUN apt-get install -y g++
 RUN apt-get install -y libc-dev
 RUN apt-get install -y python3.13-dev
 RUN apt-get install -y libmpich-dev
-RUN apt-get install -y libboost-all-dev
+RUN apt-get install -y libboost-dev
 RUN apt-get install -y scons
 
 RUN apt-get clean
diff --git a/ubuntu/Dockerfile.runtime.ubuntu b/ubuntu/Dockerfile.runtime.ubuntu
index ae4f28d..6d1baa0 100644
--- a/ubuntu/Dockerfile.runtime.ubuntu
+++ b/ubuntu/Dockerfile.runtime.ubuntu
@@ -17,7 +17,6 @@ RUN apt-get install -y python3.13-dev  # Provides libpython3.13.so
 RUN apt-get install -y python3.13-venv  # Provides ensurepip
 RUN apt-get install -y mpich
 RUN apt-get install -y libsnappy1v5
-RUN apt-get install -y libboost-all-dev  # Provides libmpi_cxx.so (???)
 
 RUN apt-get install -y nano
 
diff --git a/ubuntu/README.md b/ubuntu/README.md
index f3c8d66..cb9b8b6 100644
--- a/ubuntu/README.md
+++ b/ubuntu/README.md
@@ -25,7 +25,7 @@ Python 3.13 (via `deadsnakes` PPA), SCons, and the system packages needed to com
 | `libc-dev` | Linux headers |
 | `python3.13-dev` | Python headers |
 | `libmpich-dev` | MPI runtime and headers |
-| `libboost-all-dev` | Boost libraries |
+| `libboost-dev` | Boost headers |
 
 ---
 
@@ -41,4 +41,3 @@ Minimal Ubuntu 22.04 image for running EMOD simulations (without build tooling).
 | `python3.13-venv` | Python 3.13 virtual environments (deadsnakes PPA) |
 | `mpich` | MPI runtime |
 | `libsnappy1v5` | Snappy compression runtime |
-| `libboost-all-dev` | Shouldn't need this but it's providing MPI stuff |