diff --git a/pytket/conanfile.py b/pytket/conanfile.py
index 3d33445d85..259ed8c245 100644
--- a/pytket/conanfile.py
+++ b/pytket/conanfile.py
@@ -32,7 +32,7 @@ def package(self):
         cmake.install()
 
     def requirements(self):
-        self.requires("tket/1.2.30@tket/stable")
+        self.requires("tket/1.2.31@tket/stable")
         self.requires("tklog/0.3.3@tket/stable")
         self.requires("tkrng/0.3.3@tket/stable")
         self.requires("tkassert/0.3.3@tket/stable")
diff --git a/tket/conanfile.py b/tket/conanfile.py
index 7609624f98..5419ffd005 100644
--- a/tket/conanfile.py
+++ b/tket/conanfile.py
@@ -23,7 +23,7 @@
 
 class TketConan(ConanFile):
     name = "tket"
-    version = "1.2.30"
+    version = "1.2.31"
     package_type = "library"
     license = "Apache 2"
     homepage = "https://github.com/CQCL/tket"