diff --git a/fastcan/_cancorr_fast.pyx b/fastcan/_cancorr_fast.pyx
index 3788e9d..e761de7 100644
--- a/fastcan/_cancorr_fast.pyx
+++ b/fastcan/_cancorr_fast.pyx
@@ -169,11 +169,12 @@ cpdef int _forward_search(
     """
     cdef:
         unsigned int n_samples = X.shape[0]
-        unsigned int n_features = X.shape[1]
+        # OpenMP (in Windows) requires signed integral for prange
+        int j, n_features = X.shape[1]
         floating* r2 = <floating*> malloc(sizeof(floating) * n_features)
         bint* mask = <bint*> malloc(sizeof(bint) * n_features)
         floating g, ssc = 0.0
-        unsigned int i, j
+        unsigned int i
         int index = -1
 
     memset(&r2[0], 0, n_features * sizeof(floating))
diff --git a/meson.build b/meson.build
index 8dc8b54..dc5adfd 100644
--- a/meson.build
+++ b/meson.build
@@ -1,7 +1,7 @@
 project(
   'fastcan',
   'c', 'cython',
-  version: '0.2.2',
+  version: '0.2.3',
   license: 'MIT',
   meson_version: '>= 1.1.0',
   default_options: [
diff --git a/pixi.lock b/pixi.lock
index 96c1c69..845937b 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -1520,9 +1520,9 @@ packages:
   timestamp: 1720869435725
 - kind: pypi
   name: fastcan
-  version: 0.2.2
+  version: 0.2.3
   path: .
-  sha256: e68d895181c7c80c180d4b519639df7b7a36ff9c28d6c81a2f01f01ecdc91b80
+  sha256: ed6b2844d1cbe6eaae8d61cbef92e65395146733f966d99939a1261056423935
   requires_dist:
   - scikit-learn>=1.5.0,<1.6
   - furo ; extra == 'doc'
diff --git a/pyproject.toml b/pyproject.toml
index 3cccde5..0da2aea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "fastcan"
-version = "0.2.2"
+version = "0.2.3"
 description = "A fast canonical-correlation-based feature selection method"
 authors = [
     { name = "Matthew Sikai Zhang", email = "matthew.szhang91@gmail.com" },