diff --git a/pyproject.toml b/pyproject.toml
index 0e502de4..fd4b5561 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ dependencies = [
     "rich>=13.9.4",
     "pydantic>=1.3.0,<2.11.0",
     "pandas>=2.2.3",
-    "pyqrack-cpu>=1.69.1",
+    "pyqrack-cpu~=1.69.1",
 ]
 
 [project.optional-dependencies]
@@ -40,10 +40,10 @@ cirq = [
     "qpsolvers[clarabel]>=4.7.0",
 ]
 pyqrack-opencl = [
-    "pyqrack>=1.69.1",
+    "pyqrack~=1.69.1",
 ]
 pyqrack-cuda = [
-    "pyqrack-cuda>=1.69.1",
+    "pyqrack-cuda~=1.69.1",
 ]
 stim = [
     "stim>=1.15.0",