diff --git a/emci/rattler_build.py b/emci/rattler_build.py
index eb4ceabcd2a..a40ef39068f 100644
--- a/emci/rattler_build.py
+++ b/emci/rattler_build.py
@@ -39,6 +39,9 @@ def build_with_rattler(recipe=None, recipes_dir=None, target_platform=None, skip
         "-c", "bioconda"
     ])
 
+    # disable strict priority
+    cmd.append("--channel-priority disabled")
+
     # pass existing env vars to subprocess
     print(f"Running rattler-build with command: {cmd}")
 
diff --git a/recipes/recipes_native/pytester/bin/pytester b/recipes/recipes_native/pytester/bin/pytester
index cb4a6f605b7..7f87805013c 100755
--- a/recipes/recipes_native/pytester/bin/pytester
+++ b/recipes/recipes_native/pytester/bin/pytester
@@ -2,7 +2,7 @@
 echo "Preparing tests:"
 
 echo " - playwright install (chromium) "
-PLAYWRIGHT_DOWNLOAD_CONNECTION_TIMEOUT=120000 npx playwright install chromium
+playwright install chromium
 
 # playwright install     2>&1 > /dev/null
 echo "Run tests:"
diff --git a/recipes/recipes_native/pytester/pytester/main_mount/main.py b/recipes/recipes_native/pytester/pytester/main_mount/main.py
index b548b0bb6da..85d2c3a2e9d 100644
--- a/recipes/recipes_native/pytester/pytester/main_mount/main.py
+++ b/recipes/recipes_native/pytester/pytester/main_mount/main.py
@@ -4,7 +4,12 @@
 if __name__ == "__main__":
 
     try:
-        retcode = pytest.main(["-s"])
+        args = [
+                    "-s",
+                    "-vvv",
+                    "-p", "no:faulthandler"
+        ]
+        retcode = pytest.main(args)
     except Exception as e:
         print(f"pytest failed with exception: {e}")
         #  get backtrace
diff --git a/recipes/recipes_native/pytester/recipe.yaml b/recipes/recipes_native/pytester/recipe.yaml
index 89d9ebe931a..9584cdd1122 100644
--- a/recipes/recipes_native/pytester/recipe.yaml
+++ b/recipes/recipes_native/pytester/recipe.yaml
@@ -1,6 +1,6 @@
 context:
   version: '1.6.0'
-  build_number: 3
+  build_number: 6
 
 source:
   - path: bin
@@ -27,7 +27,7 @@ outputs:
       run:
         - python
         - microsoft::playwright
-        - conda-forge::pyjs_code_runner 
+        - pyjs_code_runner 
     
     tests:
       - package_contents:
diff --git a/recipes/recipes_wasm/numpy/recipe.yaml b/recipes/recipes_wasm/numpy/recipe.yaml
index d067671a1c8..3b18e3d75d6 100644
--- a/recipes/recipes_wasm/numpy/recipe.yaml
+++ b/recipes/recipes_wasm/numpy/recipe.yaml
@@ -3,6 +3,7 @@ context:
   cross_target_plattform: emscripten-wasm32
   target_plattform: emscripten-wasm32
   default_abi_level: 2.2
+  build_number: 1
 
 package:
   name: numpy
@@ -11,7 +12,7 @@ source:
   url: https://github.com/numpy/numpy/releases/download/v${{ version }}/numpy-${{ version }}.tar.gz
   sha256: d482d171c406ae88c5b19cad3b6a1c4c5209f886ab74bc44c2c865c23f52d860
 build:
-  number: 0
+  number: ${{ build_number }}
 
   files:
     exclude:
@@ -35,7 +36,7 @@ requirements:
   - pkg-config
   - python
   host:
-  - libpython-static
+  - python-dev
   run_exports:
   - numpy >=${{ default_abi_level }},<3
 tests:
@@ -44,15 +45,16 @@ tests:
     requirements:
       build:
       - generic-testing
-# - script: pytester
-#   requirements:
-#     build:
-#     - pytester
-#     run:
-#     - pytester-run
-#   files:
-#     recipe:
-#     - test_numpy.py
+  - script: pytester
+    requirements:
+      build:
+      - microsoft::playwright
+      - pytester
+      run:
+      - pytester-run
+    files:
+      recipe:
+      - test_numpy.py
 
 about:
   homepage: http://numpy.org/