diff --git a/docs/conf.py b/docs/conf.py
index 7e71d2bb..3bf00dd4 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -18,16 +18,41 @@
 # Get version from camtools package
 version = ct.__version__
 
-# Get git commit hash
+# When building a tagged commit, only use the tag as "release". Otherwise,
+# use the version number and the git hash as "release".
+print("[Detecting docs version]")
 try:
     git_hash = (
         subprocess.check_output(["git", "rev-parse", "--short", "HEAD"])
         .decode("ascii")
         .strip()
     )
-    release = f"{version}+{git_hash}"
+    all_tags = (
+        subprocess.check_output(["git", "tag", "--list"])
+        .decode("ascii")
+        .strip()
+        .split()
+    )
+    head_tags = (
+        subprocess.check_output(["git", "tag", "--points-at", "HEAD"])
+        .decode("ascii")
+        .strip()
+        .split()
+    )
+    print(f"- Version         : {version}")
+    print(f"- Git hash        : {git_hash}")
+    print(f"- All tags        : {all_tags}")
+    print(f"- HEAD tags       : {head_tags}")
+
+    if not head_tags:
+        release = f"{version}+{git_hash}"
+        print(f"- Docs version    : {release} (untagged commit)")
+    else:
+        release = version
+        print(f"- Docs version    : {release} (tagged commit)")
 except subprocess.CalledProcessError:
     release = version
+    print(f"- Docs version    : {release} (cannot detect tags)")
 
 project = "CamTools"
 copyright = "2024, Yixing Lao"