thodg/libgit2

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 38c79fa..2bc91e7 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -86,7 +86,7 @@ jobs:
           env:
             CC: gcc
             CMAKE_GENERATOR: Ninja
-            CMAKE_OPTIONS: -DUSE_HTTPS=OpenSSL -DREGEX_BACKEND=builtin -DDEPRECATE_HARD=ON -DUSE_LEAK_CHECKER=valgrind -DUSE_GSSAPI=ON
+            CMAKE_OPTIONS: -DUSE_HTTPS=OpenSSL -DREGEX_BACKEND=builtin -DDEPRECATE_HARD=ON -DUSE_LEAK_CHECKER=valgrind -DUSE_GSSAPI=ON -DDEBUG_STRICT_ALLOC=ON
           os: ubuntu-latest
         - # Xenial, GCC, mbedTLS
           container: