diff --git a/CHANGELOG.md b/CHANGELOG.md
index 183be0a30a8..16b4f4c7e52 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,17 @@
 
 ## Current develop
 
+### Added (new features/APIs/variables/...)
+
+### Fixed (Repair bugs, etc)
+
+### Changed (changing behavior/API/variables/...)
+
+### Infrastructure (changes irrelevant to downstream codes)
+
+## Release 1.11.1
+Date: 03/25/2026
+
 ### Added (new features/APIs/variables/...)
 - [[PR600]](https://github.com/lanl/singularity-eos/pull/600) Added mass fractions for multiphase tables to sesame2spiner and added MassFractionsFromDensityTemperture/InternalEnergy to the SpinerDependsRhoSIE and SpinerDependsRhoT equations of state.
 - [[PR589]](https://github.com/lanl/singularity-eos/pull/589) InternalEnergyFromDensityPressure
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7761e0e096f..5af39066376 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ endif()
 # declare the project name
 project(
   singularity-eos
-  VERSION 1.11.0
+  VERSION 1.11.1
   LANGUAGES NONE)
 
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")