diff --git a/.github/workflows/build-test b/.github/workflows/build-test
index b189269c..3bb1131e 100644
--- a/.github/workflows/build-test
+++ b/.github/workflows/build-test
@@ -61,6 +61,6 @@ fi
 
 if [[ "${MYPY}" = "mypy" ]]
 then
-    python -m pip install pytket
+    python -m pip install --pre -r ${GITHUB_WORKSPACE}/.github/workflows/mypy/requirements.txt
     ${GITHUB_WORKSPACE}/mypy-check ${GITHUB_WORKSPACE}
 fi
\ No newline at end of file
diff --git a/.github/workflows/mypy/requirements.txt b/.github/workflows/mypy/requirements.txt
new file mode 100644
index 00000000..2f4dce60
--- /dev/null
+++ b/.github/workflows/mypy/requirements.txt
@@ -0,0 +1,3 @@
+scipy
+ipython
+pytket
\ No newline at end of file