diff --git a/client-base/environment.yml b/client-base/environment.yml
index 626c187..1309770 100644
--- a/client-base/environment.yml
+++ b/client-base/environment.yml
@@ -11,4 +11,5 @@ dependencies:
   - python-dotenv
   - python-multipart
   - rich
-  - typer
+  # Exclude version 0.12.4 of typer: https://github.com/DIRACGrid/diracx/issues/280
+  - typer!=0.12.4
diff --git a/server-base/environment.yml b/server-base/environment.yml
index 245180b..80aa941 100644
--- a/server-base/environment.yml
+++ b/server-base/environment.yml
@@ -42,7 +42,8 @@ dependencies:
   - requests
   - rich
   - sqlalchemy
-  - typer
+  # Exclude version 0.12.4 of typer: https://github.com/DIRACGrid/diracx/issues/280
+  - typer!=0.12.4
   - uvicorn
   - aiobotocore >=2.12
   - botocore