diff --git a/.azure-pipelines/azure-pipelines-linux.yml b/.azure-pipelines/azure-pipelines-linux.yml
index 974e878..a20f315 100755
--- a/.azure-pipelines/azure-pipelines-linux.yml
+++ b/.azure-pipelines/azure-pipelines-linux.yml
@@ -15,11 +15,6 @@ jobs:
   timeoutInMinutes: 360
 
   steps:
-  - script: |
-         rm -rf /opt/ghc
-         df -h
-    displayName: Manage disk space
-
   # configure qemu binfmt-misc running.  This allows us to run docker containers
   # embedded qemu-static
   - script: |
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index 83d9c9d..fcfc43c 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -11,7 +11,7 @@ source:
 
 build:
   script: {{ PYTHON }} -m pip install . --no-deps -vv
-  number: 0
+  number: 1
   noarch: python
   entry_points:
     - conda-mambabuild = boa.cli.mambabuild:main
@@ -23,8 +23,8 @@ requirements:
     - pip
   run:
     - python >=3.6
-    - conda-build >=3.24,<3.26
-    - mamba >=1.0,<=1.4.2
+    - conda-build >=3.24
+    - mamba >=1.5.0
     - ruamel.yaml
     - jinja2
     - rich