diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73a44ecd..ddaf0427 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@ Instructions: Add a subsection under `[Unreleased]` for additions, fixes, change
 
 ## [Unreleased]
 
+## [2.40.0] - 2026-05-29
+
+Includes updates to core through commit: [6a4a9fb](https://github.com/PreTeXtBook/pretext/commit/6a4a9fbe58e2eea2acc748dd1f17091bec3b81c7)
+
 ### Added
 
 - Preliminary support for tracking student success in an LMS using SCORM builds.
diff --git a/pretext/resources/resource_hash_table.json b/pretext/resources/resource_hash_table.json
index d209d0db..54d1d1d8 100644
--- a/pretext/resources/resource_hash_table.json
+++ b/pretext/resources/resource_hash_table.json
@@ -603,5 +603,14 @@
     "pretext-cli.yml": "bd03a4481343db707982f77fe5333f4996537c148b9b22cee2d3d0c0e3cec153",
     "pretext-deploy.yml": "22361778b40bc1d71cdf2dc013b58e7282ee03877500259633fdca6df89a1b63",
     "installPandoc.sh": "3ebfe6bdcbedc6e51f957f7e73fff2c3bf3163a4b6a8d9e9a79290be52cddc95"
+  },
+  "2.40.0": {
+    "project.ptx": "27e89a159264f87acf97485ee558726fc6f4edc9d4140881fae5db1d835ccbf1",
+    "codechat_config.yaml": "7600fe14f89bda5b46a8025e80848dac2dceae9dde3064e23fac65ba22d0054b",
+    ".gitignore": "5bc77c611bc947ddde06d4788625102f67fd5f2d7648e12f636ca53ebf424cbc",
+    "devcontainer.json": "b8d7ab210b48467964549d8359f5e976d197fb562b6f7984d8148b15250ba5ef",
+    "pretext-cli.yml": "2f8d080ccd8fc21de8960b5ab702e549780c8393a17abe1148166ad9b72e6a5f",
+    "pretext-deploy.yml": "f586f8f082775f27c0025ffa95245d9c7a658995e8c51e73dfab4ee1dd933258",
+    "installPandoc.sh": "9d1a00fd7c3512b867fb306480d217a367b9528c9f1a5414ad87a006f0daa7e8"
   }
 }
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index dd0b1010..34f1d9df 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@
 # ----------------
 [tool.poetry]
 name = "pretext"
-version = "2.39.1"
+version = "2.40.1"
 description = "A package to author, build, and deploy PreTeXt projects."
 readme = "README.md"
 homepage = "https://pretextbook.org"