diff --git a/docs/INSTALL.md b/docs/INSTALL.md
index 466b84383e..529f59ff7e 100644
--- a/docs/INSTALL.md
+++ b/docs/INSTALL.md
@@ -84,9 +84,8 @@ Installing *ccache* can speed up active development.
 _Ubuntu 20.04, 22.04:_
 
 ```bash
-sudo apt-get update && sudo apt-get install -y \
+sudo apt update && sudo apt install -y \
     build-essential \
-    cmake \
     clang \
     ninja-build \
     python3 \
@@ -100,6 +99,18 @@ sudo apt-get update && sudo apt-get install -y \
     zlib1g-dev
 ```
 
+For Ubuntu 20.04 the version of `cmake` that ships with Ubuntu is too old; a more recent version can be installed using `snap`:
+
+```bash
+sudo snap install --classic cmake
+```
+
+For Ubuntu 22.04 `cmake` may be installed using `snap` as well, or alternatively by using `apt`:
+
+```bash
+sudo apt install -y cmake
+```
+
 _Fedora:_
 
 ```bash