diff --git a/packages/essreflectometry/pyproject.toml b/packages/essreflectometry/pyproject.toml
index 914387f0d..d152b6a6b 100644
--- a/packages/essreflectometry/pyproject.toml
+++ b/packages/essreflectometry/pyproject.toml
@@ -35,7 +35,7 @@ dependencies = [
     "python-dateutil>=2.9.0",
     "plopp>=26.5.0",
     "orsopy>=1.2",
-    "essreduce>=26.6.0",
+    "essreduce>=26.11.0",
     "esspolarization>=25.7.0",
     "pandas>=2.1.2",
     "scippneutron>=26.9.0",
diff --git a/packages/esssans/pyproject.toml b/packages/esssans/pyproject.toml
index 0677297c1..4e527273b 100644
--- a/packages/esssans/pyproject.toml
+++ b/packages/esssans/pyproject.toml
@@ -32,7 +32,7 @@ dynamic = ["version"]
 dependencies = [
   "dask>=2022.1.0",
   "graphviz>=0.20",
-  "essreduce>=26.10.1",
+  "essreduce>=26.11.0",
   "lazy_loader>=0.4",
   "numpy>=1.26.4",
   "pandas>=2.1.2",
diff --git a/packages/essspectroscopy/pyproject.toml b/packages/essspectroscopy/pyproject.toml
index 242e6500a..fbbc45819 100644
--- a/packages/essspectroscopy/pyproject.toml
+++ b/packages/essspectroscopy/pyproject.toml
@@ -32,7 +32,7 @@ requires-python = ">=3.12"
 dependencies = [
     "dask>=2022.1.0",
     "graphviz>=0.20",
-    "essreduce>=26.8.0",
+    "essreduce>=26.11.0",
     "pandas>=2.1.2",
     "tof>=25.11.0",
 ]
diff --git a/pixi.lock b/pixi.lock
index e4fd2a3b8..839bc1c15 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -18578,7 +18578,7 @@ packages:
   - python-dateutil>=2.9.0
   - plopp>=26.5.0
   - orsopy>=1.2
-  - essreduce>=26.6.0
+  - essreduce>=26.11.0
   - esspolarization>=25.7.0
   - pandas>=2.1.2
   - scippneutron>=26.9.0
@@ -18616,7 +18616,7 @@ packages:
   requires_dist:
   - dask>=2022.1.0
   - graphviz>=0.20
-  - essreduce>=26.10.1
+  - essreduce>=26.11.0
   - lazy-loader>=0.4
   - numpy>=1.26.4
   - pandas>=2.1.2
@@ -18650,7 +18650,7 @@ packages:
   requires_dist:
   - dask>=2022.1.0
   - graphviz>=0.20
-  - essreduce>=26.8.0
+  - essreduce>=26.11.0
   - pandas>=2.1.2
   - tof>=25.11.0
   - numba>=0.63 ; extra == 'test'