diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 5a11c2f1a..494f71e5d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -54,6 +54,7 @@ jobs:
           -DCMAKE_CXX_COMPILER_LAUNCHER=ccache  \
           -DCMAKE_C_FLAGS="-fuse-ld=lld"        \
           -DCMAKE_CXX_FLAGS="-fuse-ld=lld"      \
+          -DIMHEX_PATTERNS_PULL_MASTER=ON       \
           ..
         make -j4 unit_tests install