diff --git a/sci-mathematics/radian/radian-0.6.0.ebuild b/sci-mathematics/radian/radian-0.6.0.ebuild
index fd152ab472..a3e3ca0b3f 100644
--- a/sci-mathematics/radian/radian-0.6.0.ebuild
+++ b/sci-mathematics/radian/radian-0.6.0.ebuild
@@ -3,6 +3,7 @@
 
 EAPI=8
 
+DISTUTILS_SINGLE_IMPL=1
 PYTHON_COMPAT=( python3_{8..9} )
 
 inherit distutils-r1 optfeature
@@ -19,19 +20,27 @@ SLOT="0"
 KEYWORDS="~amd64"
 
 DEPEND="
-	>=dev-python/rchitect-0.3.36[${PYTHON_USEDEP}]
-	>=dev-python/prompt_toolkit-3.0[${PYTHON_USEDEP}]
-	>=dev-python/pygments-2.5.0[${PYTHON_USEDEP}]
+	$(python_gen_cond_dep	'
+		>=dev-python/rchitect-0.3.36[${PYTHON_USEDEP}]
+		>=dev-python/prompt_toolkit-3.0[${PYTHON_USEDEP}]
+		>=dev-python/pygments-2.5.0[${PYTHON_USEDEP}]
+	')
 "
 RDEPEND="
 	${DEPEND}
+	${PYTHON_DEPS}
 	dev-lang/R
 "
 BDEPEND="
 	test? (
-		>=dev-python/pyte-0.8.0[${PYTHON_USEDEP}]
-		dev-python/pexpect[${PYTHON_USEDEP}]
-		dev-python/ptyprocess[${PYTHON_USEDEP}]
+		$(python_gen_cond_dep	'
+			>=dev-python/pyte-0.8.0[${PYTHON_USEDEP}]
+			dev-python/pexpect[${PYTHON_USEDEP}]
+			dev-python/ptyprocess[${PYTHON_USEDEP}]
+			dev-python/jedi[${PYTHON_USEDEP}]
+		')
+		dev-R/reticulate[${PYTHON_SINGLE_USEDEP}]
+		dev-vcs/git
 	)
 "