diff --git a/dev-python/graph-tool/graph-tool-2.19.ebuild b/dev-python/graph-tool/graph-tool-2.19.ebuild
index 25260b09ba806..23f0806166cf4 100644
--- a/dev-python/graph-tool/graph-tool-2.19.ebuild
+++ b/dev-python/graph-tool/graph-tool-2.19.ebuild
@@ -25,7 +25,7 @@ REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 
 RDEPEND="
 	${PYTHON_DEPS}
-	dev-libs/boost:=[python,${PYTHON_USEDEP}]
+	<dev-libs/boost-1.70:=[python,${PYTHON_USEDEP}]
 	dev-libs/expat
 	dev-python/numpy[${PYTHON_USEDEP}]
 	sci-libs/scipy[${PYTHON_USEDEP}]
diff --git a/dev-python/graph-tool/graph-tool-2.23.ebuild b/dev-python/graph-tool/graph-tool-2.23.ebuild
index b42f702c4c8b4..68411e981641f 100644
--- a/dev-python/graph-tool/graph-tool-2.23.ebuild
+++ b/dev-python/graph-tool/graph-tool-2.23.ebuild
@@ -25,7 +25,7 @@ REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 
 RDEPEND="
 	${PYTHON_DEPS}
-	dev-libs/boost:=[context,python,${PYTHON_USEDEP}]
+	<dev-libs/boost-1.70:=[context,python,${PYTHON_USEDEP}]
 	dev-libs/expat
 	dev-python/numpy[${PYTHON_USEDEP}]
 	sci-libs/scipy[${PYTHON_USEDEP}]
diff --git a/dev-python/graph-tool/graph-tool-2.26.ebuild b/dev-python/graph-tool/graph-tool-2.26.ebuild
index b3cff09874f75..70694fddaf919 100644
--- a/dev-python/graph-tool/graph-tool-2.26.ebuild
+++ b/dev-python/graph-tool/graph-tool-2.26.ebuild
@@ -25,7 +25,7 @@ REQUIRED_USE="${PYTHON_REQUIRED_USE}"
 
 RDEPEND="
 	${PYTHON_DEPS}
-	dev-libs/boost:=[context,python,${PYTHON_USEDEP}]
+	<dev-libs/boost-1.70:=[context,python,${PYTHON_USEDEP}]
 	dev-libs/expat
 	dev-python/numpy[${PYTHON_USEDEP}]
 	sci-libs/scipy[${PYTHON_USEDEP}]