diff --git a/dev-python/pygresql/pygresql-5.1.ebuild b/dev-python/pygresql/pygresql-5.1.ebuild
index dc7d664eb5334..d8a5320c88157 100644
--- a/dev-python/pygresql/pygresql-5.1.ebuild
+++ b/dev-python/pygresql/pygresql-5.1.ebuild
@@ -3,7 +3,7 @@
 
 EAPI=6
 
-POSTGRES_COMPAT=( 9.{4..6} {10..11} )
+POSTGRES_COMPAT=( 9.{5..6} {10..11} )
 PYTHON_COMPAT=( python3_{6..7} )
 
 inherit distutils-r1 postgres