diff --git a/Cargo.lock b/Cargo.lock
index 190a80e1..ea229e46 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -16,6 +16,7 @@ name = "amber"
 version = "0.3.4-alpha"
 dependencies = [
  "assert_cmd",
+ "build-helper",
  "chrono",
  "clap",
  "colored",
@@ -137,6 +138,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "build-helper"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bdce191bf3fa4995ce948c8c83b4640a1745457a149e73c6db75b4ffe36aad5f"
+dependencies = [
+ "semver",
+]
+
 [[package]]
 name = "bumpalo"
 version = "3.16.0"
@@ -549,6 +559,21 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "semver"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a3186ec9e65071a2095434b1f5bb24838d4e8e130f584c790f6033c79943537"
+dependencies = [
+ "semver-parser",
+]
+
+[[package]]
+name = "semver-parser"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
+
 [[package]]
 name = "serde"
 version = "1.0.203"
diff --git a/Cargo.toml b/Cargo.toml
index 3e451e94..4e9ef4b1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -56,3 +56,6 @@ targets = [
 pr-run-mode = "skip"
 # Allow modifying release.yml
 allow-dirty = ["ci"]
+
+[build-dependencies]
+build-helper = "0.1.1"
diff --git a/build.rs b/build.rs
new file mode 100644
index 00000000..c96fa0df
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,3 @@
+fn main() {
+    build_helper::rerun_if_changed("src/tests/**");
+}