diff --git a/conanfile.py b/conanfile.py
index 2112f7ed..507a4b48 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -40,8 +40,8 @@ def build_requirements(self):
         self.build_requires("gtest/1.14.0")
 
     def requirements(self):
-        self.requires("homestore/[>=6.2,      include_prerelease=True]@oss/master")
-        self.requires("sisl/[>=12.1, include_prerelease=True]@oss/master")
+        self.requires("homestore/[^6.2, include_prerelease=True]@oss/master")
+        self.requires("sisl/[^12.1, include_prerelease=True]@oss/master")
         self.requires("lz4/1.9.4", override=True)
 
     def validate(self):