diff --git a/CITATION.cff b/CITATION.cff
index 316641a08..804c356ae 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -3,7 +3,7 @@ message: If you use this software, please cite both the article from preferred-c
   references, and the software itself.
 type: software
 title: FloPy
-version: 3.8.2
+version: 3.9.0.dev2
 date-released: '2024-10-03'
 doi: 10.5066/F7BK19FH
 abstract: A Python package to create, run, and post-process MODFLOW-based models.
diff --git a/README.md b/README.md
index f145e49fb..09b3388d5 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 
 <img src="https://raw.githubusercontent.com/modflowpy/flopy/master/examples/images/flopy3.png" alt="flopy3" style="width:50;height:20">
 
-### Version 3.8.2
+### Version 3.9.0.dev2
 [![flopy continuous integration](https://github.com/modflowpy/flopy/actions/workflows/commit.yml/badge.svg?branch=develop)](https://github.com/modflowpy/flopy/actions/workflows/commit.yml)
 [![Read the Docs](https://github.com/modflowpy/flopy/actions/workflows/rtd.yml/badge.svg?branch=develop)](https://github.com/modflowpy/flopy/actions/workflows/rtd.yml)
 
@@ -150,7 +150,7 @@ How to Cite
 
 ##### ***Software/Code citation for FloPy:***
 
-[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2024, FloPy v3.8.2: U.S. Geological Survey Software Release, 03 October 2024, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
+[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2024, FloPy v3.9.0.dev2: U.S. Geological Survey Software Release, 03 October 2024, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
 
 
 Additional FloPy Related Publications
diff --git a/docs/PyPI_release.md b/docs/PyPI_release.md
index a7e475171..7b451038a 100644
--- a/docs/PyPI_release.md
+++ b/docs/PyPI_release.md
@@ -30,4 +30,4 @@ How to Cite
 
 *Software/Code citation for FloPy:*
 
-[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2024, FloPy v3.8.2: U.S. Geological Survey Software Release, 03 October 2024, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
+[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2024, FloPy v3.9.0.dev2: U.S. Geological Survey Software Release, 03 October 2024, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
diff --git a/flopy/version.py b/flopy/version.py
index cd0fda2a1..ebd7d3649 100644
--- a/flopy/version.py
+++ b/flopy/version.py
@@ -1,4 +1,4 @@
 # flopy version file automatically created using
-# update_version.py on October 03, 2024 12:12:12
+# update_version.py on October 03, 2024 11:54:30
 
-__version__ = "3.8.2"
+__version__ = "3.9.0.dev2"
diff --git a/version.txt b/version.txt
index 00e897bda..b5bf3ea44 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-3.8.2
\ No newline at end of file
+3.9.0.dev2
\ No newline at end of file