diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 32e16e3..dca803d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
   tests:
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
         os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
@@ -33,6 +33,9 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
+          cache: pip
+          cache-dependency-path: "pyproject.toml"
 
       - name: Install Intercepts
         shell: bash
diff --git a/intercepts/registration.py b/intercepts/registration.py
index 4c6c629..591c416 100644
--- a/intercepts/registration.py
+++ b/intercepts/registration.py
@@ -120,6 +120,18 @@ def _register_function(
                 bytes(
                     [dis.opmap["PUSH_NULL"], 0] + load_const + [dis.opmap["NOP"], 0] * 4
                 ),
+            ).replace(
+                bytes(
+                    [
+                        dis.opmap["LOAD_GLOBAL"],
+                        (_index << 1) + 1,
+                        *([dis.opmap["CACHE"], 0] * 4),
+                    ]
+                ),
+                # Need the NOPs to prevent segfaults with coveragepy and pytest
+                bytes(
+                    [dis.opmap["PUSH_NULL"], 0] + load_const + [dis.opmap["NOP"], 0] * 3
+                ),
             )
         if _PYTHON_VERSION < (3, 8):
             _code = types.CodeType(