diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0bda942..397e5be 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,6 +9,8 @@ on:
 jobs:
   build:
     runs-on: ${{ matrix.os }}
+    env:
+      PKG_CONFIG_PATH: "/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/lib/pkgconfig:/opt/homebrew/lib/pkgconfig:/usr/local/lib/pkgconfig"
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
diff --git a/core/Cargo.toml b/core/Cargo.toml
index 424db66..86fc1f5 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -38,6 +38,12 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 hidapi = "1.3"
 
+# Direct runtime/test dependencies used by core
+rusqlite = "0.29"
+tempfile = "3.6"
+uuid = { version = "1.4", features = ["v4"] }
+lazy_static = "1.4"
+
 # Monero (RPC client)
 reqwest = { version = "0.11", features = ["blocking", "json", "rustls-tls"] }
 monero = "0.18"