diff --git a/python/py-rich-theme-manager/Portfile b/python/py-rich-theme-manager/Portfile
index 0d76fbb38d1ab..b304a7cf0130f 100644
--- a/python/py-rich-theme-manager/Portfile
+++ b/python/py-rich-theme-manager/Portfile
@@ -22,7 +22,7 @@ checksums                   rmd160  ef39eff71d0b66f67716ec8b409486c45999aa93 \
                             sha256  3bc1effa4b6c42f72994b73c8b3c391b1c6e803deccc2fc3932da31b00f1a112 \
                             size    17416
 
-python.versions             38 39 310 311 312
+python.versions             38 39 310 311 312 313
 
 python.pep517               yes
 python.pep517_backend       poetry