diff --git a/python/py-build/Portfile b/python/py-build/Portfile
index a4f7a4a4252..13a5c627680 100644
--- a/python/py-build/Portfile
+++ b/python/py-build/Portfile
@@ -5,7 +5,7 @@ PortGroup           python 1.0
 
 name                py-build
 
-version             1.4.4
+version             1.5.1
 revision            0
 categories-append   devel
 license             MIT
@@ -25,9 +25,9 @@ long_description    {*}${description} which will invoke the PEP 517 \
 
 homepage            https://pypa-build.readthedocs.io/
 
-checksums           md5 825cabb4439e5e7f55ee22a5c16e903c \
-                    rmd160 8be04c250baef8c192084c485cf9c06b979f16c3 \
-                    sha256 f832ae053061f3fb524af812dc94b8b84bac6880cd587630e3b5d91a6a9c1703
+checksums           md5 34f31a0c3be1c827237b01696d3d0b89 \
+                    rmd160 c38ddbfdc56bb2e90301b503ea5cd490ecce6c80 \
+                    sha256 94e17f1db803ab22f46049376c44c8437c52090f0dfdf1adc43df56542d644fb
 
 if {${name} ne ${subport}} {
     # don't depend on ourself
@@ -44,6 +44,13 @@ if {${name} ne ${subport}} {
     build.args      --skip-dependency-check
 
     switch ${python.version} {
+        39 {
+            version     1.4.4
+            revision    0
+            checksums   md5 825cabb4439e5e7f55ee22a5c16e903c \
+                        rmd160 8be04c250baef8c192084c485cf9c06b979f16c3 \
+                        sha256 f832ae053061f3fb524af812dc94b8b84bac6880cd587630e3b5d91a6a9c1703
+        }
         38 {
             version     1.2.2.post1
             revision    0