diff --git a/python/py-gammapy/Portfile b/python/py-gammapy/Portfile
index c88bfc3800970..9d39942863631 100644
--- a/python/py-gammapy/Portfile
+++ b/python/py-gammapy/Portfile
@@ -11,7 +11,7 @@ version             0.7
 categories-append   science
 platforms           darwin
 license             BSD
-maintainers         {gmail.com:Deil.Christoph @cdeil} openmaintainer
+maintainers         nomaintainer
 
 description         A Python package for gamma-ray astronomy
 long_description    ${description}
diff --git a/python/py-pyregion/Portfile b/python/py-pyregion/Portfile
index 2f2ae1c57bb7a..3da51d1026157 100644
--- a/python/py-pyregion/Portfile
+++ b/python/py-pyregion/Portfile
@@ -10,7 +10,7 @@ name                py-${_name}
 version             2.0
 categories-append   science
 platforms           darwin
-maintainers         {gmail.com:Deil.Christoph @cdeil} openmaintainer
+maintainers         nomaintainer
 
 description         pyregion is a Python module to parse ds9 region files
 long_description    ${description}
diff --git a/python/py-regions/Portfile b/python/py-regions/Portfile
index 890de66e2adf6..8550c04148691 100644
--- a/python/py-regions/Portfile
+++ b/python/py-regions/Portfile
@@ -10,7 +10,7 @@ name                py-${_name}
 version             0.3
 categories-append   science
 platforms           darwin
-maintainers         {gmail.com:Deil.Christoph @cdeil} openmaintainer
+maintainers         nomaintainer
 
 description         Astropy affilated package for region handling
 long_description    ${description}
diff --git a/python/py-reproject/Portfile b/python/py-reproject/Portfile
index 0273d8e2afd29..ad825badb259d 100644
--- a/python/py-reproject/Portfile
+++ b/python/py-reproject/Portfile
@@ -10,7 +10,7 @@ name                py-${_name}
 version             0.4
 categories-append   science
 platforms           darwin
-maintainers         {gmail.com:Deil.Christoph @cdeil} openmaintainer
+maintainers         nomaintainer
 
 description         Astropy affiliated package for image reprojection
 long_description    ${description}