diff --git a/BUILD.md b/BUILD.md
index ca3ea1d..b404adc 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -3,7 +3,7 @@
 1. **Fetch dependencies**
 
     - Ubuntu Cosmic (18.10) through Focal (20.04):
-    ```autoconf autoconf-archive autoconf2.13 automake autotools-dev boost1.71 build-essential cmake curl git libbz2-dev libmagic-dev libnss-db libsodium-dev libssl-dev libtool shtool xz-utils```
+    ```autoconf autoconf-archive autoconf2.13 automake autotools-dev boost1.71 build-essential git libbz2-dev libmagic-dev libnss-db libsodium-dev libssl-dev libtool shtool xz-utils libgraphicsmagick1-dev libgraphicsmagick-q16-3 libicu-dev libjemalloc-dev liblz4-dev libzstd-dev librocksdb-dev clang-10```
 
 
 2. **Review special requirements for platforms and packages**
@@ -47,6 +47,9 @@ especially for development. Example `--prefix=~/.local/`.
     > 🛑 Any `--with-included-*` option to configure will fetch, configure **and build** the dependencies included as submodules. The result cannot be installed on the system without this repository remaining intact. Please review the special requirements first to understand which options you need or don't need on your system.
 
     ```
+    export CXX=clang++
+    export CC=clang
+
     ./autogen.sh
     ./configure --prefix=$HOME/construct-build
     make install