diff --git a/docs/source/hpc.rst b/docs/source/hpc.rst
index 508597781d..102455b822 100644
--- a/docs/source/hpc.rst
+++ b/docs/source/hpc.rst
@@ -22,7 +22,7 @@ HPC helpdesks
 * Hercules:  rdhpcs.hercules.help@noaa.gov
 * HPSS: rdhpcs.hpss.help@noaa.gov
 * Gaea: oar.gfdl.help@noaa.gov
-* S4: david.huber@noaa.gov
+* S4: innocent.souopgui@noaa.gov
 * Jet: rdhpcs.jet.help@noaa.gov
 * Cloud: rdhpcs.cloud.help@noaa.gov
 
@@ -48,7 +48,7 @@ https://aim.rdhpcs.noaa.gov/
 Optimizing the global workflow on S4
 ====================================
 
-The S4 cluster is relatively small and so optimizations are recommended to improve cycled runtimes. Please contact David Huber (david.huber@noaa.gov) if you are planning on running a cycled experiment on this system to obtain optimized configuration files.
+The S4 cluster is relatively small and so optimizations are recommended to improve cycled runtimes. Please contact Innocent Souopgui (innocent.souopgui@noaa.gov) if you are planning on running a cycled experiment on this system to obtain optimized configuration files.
 
 ============
 Git settings
diff --git a/docs/source/init.rst b/docs/source/init.rst
index f945494af8..ac900e1be2 100644
--- a/docs/source/init.rst
+++ b/docs/source/init.rst
@@ -315,7 +315,7 @@ Manual Generation
 *****************
 
 .. note::
-   Initial conditions cannot be generated on S4. These must be generated on another supported platform then pushed to S4. If you do not have access to a supported system or need assistance, please contact David Huber (david.huber@noaa.gov).
+   Initial conditions cannot be generated on S4. These must be generated on another supported platform then pushed to S4. If you do not have access to a supported system or need assistance, please contact Innocent Souopgui (innocent.souopgui@noaa.gov).
 
 .. _coldstarts: