diff --git a/.github/workflows/build_base.yml b/.github/workflows/build_base.yml
index 141cfd8..14bdd43 100644
--- a/.github/workflows/build_base.yml
+++ b/.github/workflows/build_base.yml
@@ -4,7 +4,7 @@ env:
   # Native Global Libs
   BOOST_VERSION: 1.74 # casacore<--python-casacore<--rascil<--karabo needs boost 1.74
   NUMPY_VERSION: 1.25
-  MPICH_VERSION: 4.1.2
+  MPICH_VERSION: 4.1.*
   SCIPY_VERSION: 1.10.1 # tools21cm have troubles with a lesser version
 
   # Pinocchio Line
diff --git a/fftw3/meta.yaml b/fftw3/meta.yaml
index 6d4c078..3060b4f 100644
--- a/fftw3/meta.yaml
+++ b/fftw3/meta.yaml
@@ -3,7 +3,7 @@ package:
   version: {{ FFTW3_VERSION_ALT }}
 
 source:
-   url: https://www.fftw.org/{{ PACKAGE_NAME|lower }}-{{ FFTW3_VERSION }}.tar.gz 
+   url: https://fftw.org/fftw-{{ FFTW3_VERSION }}.tar.gz 
 
 build:
   string: {{ FFTW3_VERSION_ALT }}