diff --git a/.tangled/workflows/build.yml b/.tangled/workflows/build.yml
index 5347a27..a3baee4 100644
--- a/.tangled/workflows/build.yml
+++ b/.tangled/workflows/build.yml
@@ -8,9 +8,12 @@ dependencies:
     - cargo
     - rustc
     - rustfmt
+    - pkg-config
+    - openssl
 
 steps:
   - name: build
     command: |
+       export PKG_CONFIG_PATH="${PKG_CONFIG_PATH:+$PKG_CONFIG_PATH:}$(nix build nixpkgs#openssl.dev --no-link --print-out-paths)/lib/pkgconfig"
        cargo build --all