diff --git a/manual/source/refs.md b/manual/source/refs.md
index acc0eacb..e484de63 100644
--- a/manual/source/refs.md
+++ b/manual/source/refs.md
@@ -1,7 +1,7 @@
 ## Technical References
 
-- <a href="https://incore.ncsa.illinois.edu/doc/pyincore/" target="_blank">pyIncore</a> Reference
-- <a href="https://incore.ncsa.illinois.edu/doc/pyincore_viz/" target="_blank">pyIncore-viz</a> Reference
-- <a href="https://incore.ncsa.illinois.edu/doc/api/" target="_blank">IN-CORE Web Services API</a> specifications
+- <a href="../pyincore/" target="_blank">pyIncore</a> Reference
+- <a href="../pyincore_viz/" target="_blank">pyIncore-viz</a> Reference
+- <a href="../api/" target="_blank">IN-CORE Web Services API</a> specifications
 
 ![Swagger API viewer with endpoint definitions.](images/incore_swagger.jpg "Swagger API viewer with endpoint definitions.")
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