diff --git a/README.Rmd b/README.Rmd
index 124bc8a..c58c439 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -107,7 +107,7 @@ clean_hydro(raw_data)
 
 `vignette("dbhydroR", package = "dbhydroR")`
 
-[DBHYDRO User's Guide](http://www.sfwmd.gov/portal/page/portal/xrepository/sfwmd_repository_pdf/dbhydrobrowseruserdocumentation.pdf)
+[DBHYDRO User's Guide](https://www.sfwmd.gov/sites/default/files/documents/dbhydrobrowseruserdocumentation.pdf)
 
 ## Meta
 
diff --git a/README.md b/README.md
index 658cbf7..cd2faab 100644
--- a/README.md
+++ b/README.md
@@ -89,7 +89,7 @@ References
 
 `vignette("dbhydroR", package = "dbhydroR")`
 
-[DBHYDRO User's Guide](http://www.sfwmd.gov/portal/page/portal/xrepository/sfwmd_repository_pdf/dbhydrobrowseruserdocumentation.pdf)
+[DBHYDRO User's Guide](https://www.sfwmd.gov/sites/default/files/documents/dbhydrobrowseruserdocumentation.pdf)
 
 Meta
 ----