diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9957b1c..c404aa5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -19,3 +19,6 @@ job A:
     - conan install .. --build missing
     - cmake -DCMAKE_CXX_COMPILER=clang++ .. -G Ninja
     - cmake --build .
+  cache:
+    key: libraries
+    path: ~/.conan/