diff --git a/.gitmodules b/.gitmodules
index ff80aa6cb..026352540 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -136,7 +136,7 @@
         url = https://github.com/NCAR/ParallelIO
         fxDONOTUSEurl = https://github.com/NCAR/ParallelIO
         fxrequired = ToplevelRequired
-        fxtag = pio2_7_0
+        fxtag = pio2_6_8
 
 [submodule "mpi-serial"]
         path = libraries/mpi-serial
diff --git a/ChangeLog b/ChangeLog
index d389bdb21..3b8e5fea7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -19,7 +19,7 @@ components/rtm                         https://github.com/ESCOMP/rtm/tree/rtm1_0
 components/ww3                         https://github.com/ESCOMP/WW3-CESM/tree/main_0.0.19                  --
 components/mizuroute                   https://github.com/ESCOMP/mizuRoute/tree/cesm-coupling.v3.1.1        **
 components/mosart                      https://github.com/ESCOMP/mosart/tree/mosart1_1_13                   --
-libraries/parallelio                   https://github.com/NCAR/ParallilIO/tree/pio2_7_0                     **
+libraries/parallelio                   https://github.com/NCAR/ParallilIO/tree/pio2_6_8                     --
 libraries/mpi-serial                   https://github.com/ESMCI/mpi-serial/tree/MPIserial_2.5.0             --
 libraries/tuv-x                        https://github.com/NCAR/tuv-x/tree/v0.14.3                           --
 tools/statistical_ensemble_test/pyCECT https://github.com/NCAR/PyCECT/tree/3.2.1                            --
@@ -167,15 +167,6 @@ mizuRoute
     Several bug fixes
 
 
-ParallelIO
-    Erik Kluzek 2026-05-29 - pio2_7_0 - libraries/parallelio (cesm3_0_alpha09c)
-    https://github.com/NCAR/ParallelIO/tags/pio2_7_0
-
-    pio2_7_0: Update to new release
-    pio2_6_10: Add parallel GDAL read, update build
-    pio2_6_9: Build updates
-
-
 ==============================================================
 Tag name: cesm3_0_alpha09b
 Originator(s): CSEG
diff --git a/libraries/parallelio b/libraries/parallelio
index 6cde06741..39e558441 160000
--- a/libraries/parallelio
+++ b/libraries/parallelio
@@ -1 +1 @@
-Subproject commit 6cde06741bf1a774ff5f8b7095025c71a5be19c4
+Subproject commit 39e558441197b0b98f69b989708b3df22a5d7438