diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc10812..9e88c89 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 4.1.2 (2026-04-27)
+
+### Fix
+
+- mark compatible with Taskgraph v21.x
+- ensure head_rev matches the ones action tasks are running from
+
 ## 4.1.1 (2026-03-17)
 
 ### Fix
diff --git a/pyproject.toml b/pyproject.toml
index 6577618..e3189a3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "mozilla-taskgraph"
-version = "4.1.1"
+version = "4.1.2"
 description = "Mozilla specific transforms and utilities for Taskgraph"
 readme = "README.md"
 authors = [
diff --git a/uv.lock b/uv.lock
index 6ef87b5..3ae5596 100644
--- a/uv.lock
+++ b/uv.lock
@@ -852,7 +852,7 @@ name = "exceptiongroup"
 version = "1.3.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "typing-extensions", marker = "python_full_version < '3.12'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.11'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/50/79/66800aadf48771f6b62f7eb014e352e5d06856655206165d775e675a02c9/exceptiongroup-1.3.1.tar.gz", hash = "sha256:8b412432c6055b0b7d14c310000ae93352ed6754f70fa8f7c34141f91c4e3219", size = 30371, upload-time = "2025-11-21T23:01:54.787Z" }
 wheels = [
@@ -1274,7 +1274,7 @@ wheels = [
 
 [[package]]
 name = "mozilla-taskgraph"
-version = "4.1.1"
+version = "4.1.2"
 source = { editable = "." }
 dependencies = [
     { name = "taskcluster-taskgraph" },