diff --git a/bindings/python/requirements.txt b/bindings/python/requirements.txt
index 0d5f3230..49b60c38 100644
--- a/bindings/python/requirements.txt
+++ b/bindings/python/requirements.txt
@@ -4,7 +4,7 @@
 #
 #    pip-compile --pre bindings/python/requirements.in
 #
-opengeode-core==14.*,>=14.4.7
+opengeode-core==14.*,>=14.4.8rc4
     # via
     #   -r bindings/python/requirements.in
     #   opengeode-geosciences
@@ -16,5 +16,5 @@ opengeode-geosciences==7.*,>=7.1.5
     #   opengeode-geosciencesio
 opengeode-geosciencesio==4.*,>=4.2.2
     # via -r bindings/python/requirements.in
-opengeode-io==6.*,>=6.0.11
+opengeode-io==6.*,>=6.1.0rc1
     # via -r bindings/python/requirements.in