diff --git a/README.md b/README.md
index a261700..9193771 100644
--- a/README.md
+++ b/README.md
@@ -17,10 +17,10 @@ This image is used as the base of the diracx service image.
 
 ## How to build
 
-The most up to date documentation on how to build is the [CI job](.github/workflows/main.yml)
+The most up to date documentation on how to build is the [CI job](.github/workflows/main.yml).
 
 ```bash
 
 docker build -t ghcr.io/diracgrid/diracx/base:latest base
 docker build -t ghcr.io/diracgrid/diracx/servces-base:latest services-base/
-```
\ No newline at end of file
+```
diff --git a/base/environment.yml b/base/environment.yml
index 4916c9c..019acee 100644
--- a/base/environment.yml
+++ b/base/environment.yml
@@ -20,3 +20,4 @@ dependencies:
   - pyyaml
   - requests
   - urllib3 <2
+  - sh