diff --git a/.github/workflows/merge_conan_build.yml b/.github/workflows/merge_conan_build.yml
index 1223430..7d613c4 100644
--- a/.github/workflows/merge_conan_build.yml
+++ b/.github/workflows/merge_conan_build.yml
@@ -21,6 +21,8 @@ jobs:
             build-type: Debug
           - malloc-impl: tcmalloc
             build-type: Debug
+          - malloc-impl: tcmalloc
+            prerelease: "True"
           - malloc-impl: jemalloc
             prerelease: "False"
           - malloc-impl: libc