diff --git a/.readthedocs.yml b/.readthedocs.yml
index 63c4798050..8ec8ab145c 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -4,6 +4,10 @@ build:
   os: ubuntu-20.04
   tools:
     python: mambaforge-4.10
+  jobs:
+    post_checkout:
+      - git fetch --unshallow
+      - git fetch --all
 
 conda:
   environment: requirements/ci/readthedocs.yml
diff --git a/docs/src/conf.py b/docs/src/conf.py
index 4025d8159f..4f1eae7403 100644
--- a/docs/src/conf.py
+++ b/docs/src/conf.py
@@ -87,6 +87,8 @@ def autolog(message):
 # |version|, also used in various other places throughout the built documents.
 
 version = get_version("scitools-iris")
+if version.endswith("+dirty"):
+    version = version[: -len("+dirty")]
 autolog(f"Iris Version = {version}")
 
 # -- General configuration ---------------------------------------------------