diff --git a/dev-python/kaptan/kaptan-0.5.12-r3.ebuild b/dev-python/kaptan/kaptan-0.5.12-r4.ebuild
similarity index 83%
rename from dev-python/kaptan/kaptan-0.5.12-r3.ebuild
rename to dev-python/kaptan/kaptan-0.5.12-r4.ebuild
index d30801bd88c93..3478ab2f6edbd 100644
--- a/dev-python/kaptan/kaptan-0.5.12-r3.ebuild
+++ b/dev-python/kaptan/kaptan-0.5.12-r4.ebuild
@@ -23,3 +23,9 @@ RDEPEND="
 "
 
 distutils_enable_tests pytest
+
+src_prepare() {
+	# remove pinned deps
+	> requirements/base.txt || die
+	distutils-r1_src_prepare
+}