diff --git a/CMakeLists.txt b/CMakeLists.txt
index df48305991..1a1e97419b 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,7 +36,7 @@ set(DESCRIPTION "Dissolve")
 set(AUTHOR "Team Dissolve")
 set(VERSION_MAJOR "1")
 set(VERSION_MINOR "9")
-set(VERSION_PATCH "0")
+set(VERSION_PATCH "1")
 
 if(NOT CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE "Release")
diff --git a/ChangeLog.md b/ChangeLog.md
index c8545edc3a..36f9cc53ee 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,40 +1,30 @@
 # Changelog
 
-## [1.9.0] - 2025-11-21
+## [1.9.1] - 2026-08-04
 
-### 🚀 Features
+### 🐛 Bug Fixes
 
-- Nanotube species creator ([#2188](https://github.com/disorderedmaterials/dissolve/issues/2188))
-- Clustering improvements ([#2193](https://github.com/disorderedmaterials/dissolve/issues/2193))
-- Chiral nanotube and graphene sheet creator ([#2195](https://github.com/disorderedmaterials/dissolve/issues/2195))
+- Consistent representative F(r) ([#2303](https://github.com/disorderedmaterials/dissolve/issues/2303))
+- Scattering matrix data was not correctly updated ([#2571](https://github.com/disorderedmaterials/dissolve/issues/2571))
 
-### 🐛 Bug Fixes
+### 📚 Documentation
 
-- No more custom close buttons on tabs ([#2194](https://github.com/disorderedmaterials/dissolve/issues/2194))
-- Invalidated iterator error in Visual Studio build ([#2208](https://github.com/disorderedmaterials/dissolve/issues/2208))
-- Replace gtest_discover_tests for Visual Studio 2022 builds ([#2229](https://github.com/disorderedmaterials/dissolve/issues/2229))
-- No GeneralRegionGeneratorNode if mixSpecies is empty ([#2223](https://github.com/disorderedmaterials/dissolve/issues/2223))
-- Consistent object naming ([#2238](https://github.com/disorderedmaterials/dissolve/issues/2238))
-- Data limits used in potential generation ([#2236](https://github.com/disorderedmaterials/dissolve/issues/2236))
-- Update VS2022 develop branch ([#2241](https://github.com/disorderedmaterials/dissolve/issues/2241))
+- Don't encourage supply chain attacks ([#2552](https://github.com/disorderedmaterials/dissolve/issues/2552))
 
 ### ⚙️ Miscellaneous Tasks
 
-- Added concurrency group to the pr workflow to automatically cancel previous low priority workflows ([#2212](https://github.com/disorderedmaterials/dissolve/issues/2212))
-- Upgrade develop branch to conan 2 ([#2237](https://github.com/disorderedmaterials/dissolve/issues/2237))
-- Fix submodule hack on CI ([#2255](https://github.com/disorderedmaterials/dissolve/issues/2255))
-- Nix flake whitelist ([#2256](https://github.com/disorderedmaterials/dissolve/issues/2256))
+- Fix nix bundle version and fix copyright dates ([#2294](https://github.com/disorderedmaterials/dissolve/issues/2294))
 
 ### 🔨️ Build Tools
 
-- Refactor Powershell script for Visual Studio setup ([#2191](https://github.com/disorderedmaterials/dissolve/issues/2191))
-- Add action to free up space on Linux, run on QC step. ([#2245](https://github.com/disorderedmaterials/dissolve/issues/2245))
-- Fix path to examples/_index.md in website build ([#2240](https://github.com/disorderedmaterials/dissolve/issues/2240))
-- Update singularity building pipeline ([#2253](https://github.com/disorderedmaterials/dissolve/issues/2253))
+- Add missing OSX vars to recreate_release ([#2283](https://github.com/disorderedmaterials/dissolve/issues/2283))
+- OSX packaging fixes ([#2291](https://github.com/disorderedmaterials/dissolve/issues/2291))
+- Remove conan_provider.cmake on Visual Studio 2022 clean ([#2295](https://github.com/disorderedmaterials/dissolve/issues/2295))
+- Conan windows aqt hwloc ([#2317](https://github.com/disorderedmaterials/dissolve/issues/2317))
+- Fix Windows and OSX CI builds ([#2572](https://github.com/disorderedmaterials/dissolve/issues/2572))
 
 ### Doc
 
-- Fix some typos, contributors, example data links. ([#2197](https://github.com/disorderedmaterials/dissolve/issues/2197))
-- Update compilation instructions. ([#2244](https://github.com/disorderedmaterials/dissolve/issues/2244))
+- Minor web updates jan 2026 ([#2293](https://github.com/disorderedmaterials/dissolve/issues/2293))
 
 <!-- generated by git-cliff -->
diff --git a/flake.nix b/flake.nix
index 25e661f843..094d663bcf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -36,7 +36,7 @@
         });
       exe-name = mpi: gui: if mpi then "dissolve-mpi" else (if gui then "dissolve-gui" else "dissolve");
       cmake-bool = x: if x then "ON" else "OFF";
-      version = "1.9.0";
+      version = "1.9.1";
       base_libs =
         pkgs: with pkgs; [
           antlr4
diff --git a/src/main/version.cpp b/src/main/version.cpp
index d76cf693a7..8f831107c2 100644
--- a/src/main/version.cpp
+++ b/src/main/version.cpp
@@ -6,7 +6,7 @@
 #include <iostream>
 #include <string>
 
-#define DISSOLVEVERSION "1.9.0"
+#define DISSOLVEVERSION "1.9.1"
 #define DISSOLVESHORTHASH ""
 #define DISSOLVEREPO "https://github.com/disorderedmaterials/dissolve.git"
 
diff --git a/web/main.toml b/web/main.toml
index d804203320..666d8b4879 100644
--- a/web/main.toml
+++ b/web/main.toml
@@ -47,8 +47,8 @@ latexDashes = true
 # General Parameters
 [params]
 copyright = "Team Dissolve and contributors. Built using Hugo/Docsy."
-releaseVersion = "1.9.0"
-releaseDate = "Friday 21st November 2025"
+releaseVersion = "1.9.1"
+releaseDate = "Tuesday 4th August 2026"
 github_repo = "https://github.com/disorderedmaterials/dissolve"
 github_subdir = "web"
 github_branch = "develop"