diff --git a/dev-db/pgrouting/pgrouting-3.1.1.ebuild b/dev-db/pgrouting/pgrouting-3.1.1.ebuild
index 0c0d27fd57108..9976eb3b0450e 100644
--- a/dev-db/pgrouting/pgrouting-3.1.1.ebuild
+++ b/dev-db/pgrouting/pgrouting-3.1.1.ebuild
@@ -6,7 +6,7 @@ EAPI=7
 CMAKE_BUILD_TYPE="Release"
 #CMAKE_MAKEFILE_GENERATOR=emake
 
-POSTGRES_COMPAT=( 9.{5..6} {10..13} )
+POSTGRES_COMPAT=( 9.6 {10..13} )
 POSTGRES_USEDEP="server"
 
 inherit cmake postgres-multi
diff --git a/dev-db/pgrouting/pgrouting-3.1.2.ebuild b/dev-db/pgrouting/pgrouting-3.1.2.ebuild
index addf00e4158a2..3dbd84c33373f 100644
--- a/dev-db/pgrouting/pgrouting-3.1.2.ebuild
+++ b/dev-db/pgrouting/pgrouting-3.1.2.ebuild
@@ -5,7 +5,7 @@ EAPI=7
 
 CMAKE_BUILD_TYPE="Release"
 
-POSTGRES_COMPAT=( 9.{5..6} {10..13} )
+POSTGRES_COMPAT=( 9.6 {10..13} )
 POSTGRES_USEDEP="server"
 
 inherit cmake postgres-multi
diff --git a/dev-db/pgrouting/pgrouting-3.1.3.ebuild b/dev-db/pgrouting/pgrouting-3.1.3.ebuild
index 97f11ea503cae..fbeb110ffd185 100644
--- a/dev-db/pgrouting/pgrouting-3.1.3.ebuild
+++ b/dev-db/pgrouting/pgrouting-3.1.3.ebuild
@@ -5,7 +5,7 @@ EAPI=7
 
 CMAKE_BUILD_TYPE="Release"
 
-POSTGRES_COMPAT=( 9.{5..6} {10..13} )
+POSTGRES_COMPAT=( 9.6 {10..13} )
 POSTGRES_USEDEP="server"
 
 inherit cmake postgres-multi