diff --git a/CHANGES.md b/CHANGES.md
index 6f6785c..e25acf1 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,8 +1,9 @@
 See <https://github.com/geodynamics/pythia/commits/master> for the complete log of changes made to Pythia/Pyre.
 
-## Version 1.3.0 (2026-06-07)
+## Version 1.3.0 (2026-08-17)
 
 * Added pygments lexer `pyrejournal' for syntax highlighting of journal output.
+* Added configure option for pip install without build isolation (`--without-build-isolation`).
 
 ## Version 1.2.0 (2026-05-30)
 
diff --git a/configure.ac b/configure.ac
index 0015e83..de8c6a3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 dnl
 
 AC_PREREQ(2.59)
-AC_INIT([pythia], [1.2.0], [baagaard@usgs.gov])
+AC_INIT([pythia], [1.3.0], [baagaard@usgs.gov])
 AC_CONFIG_HEADER([portinfo])
 AC_CONFIG_AUX_DIR([./aux-config])
 AC_CONFIG_MACRO_DIR([m4])
diff --git a/setup.cfg b/setup.cfg
index 271a4c4..f053630 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -4,7 +4,7 @@ tag_date = 0
 
 [metadata]
 name = pythia
-version = 1.2.0
+version = 1.3.0
 author = Michael A.G. Aivazis
 maintainer = Brad Aagaard
 maintainer_email = baagaard@usgs.gov