diff --git a/Cargo.toml b/Cargo.toml
index 3534f6dc4..ab579173b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -156,5 +156,5 @@ features = ["testing"]
 
 [dev-dependencies]
 loco-rs = { path = ".", features = ["testing"] }
-rstest = "0.18.2"
+rstest = "0.21.0"
 insta = { version = "1.34.0", features = ["redactions", "yaml", "filters"] }
diff --git a/examples/demo/Cargo.toml b/examples/demo/Cargo.toml
index 09f69dc1a..28c7ae98d 100644
--- a/examples/demo/Cargo.toml
+++ b/examples/demo/Cargo.toml
@@ -50,7 +50,7 @@ required-features = []
 
 [dev-dependencies]
 serial_test = "2.0.0"
-rstest = "0.18.2"
+rstest = "0.21.0"
 loco-rs = { version = "*", path = "../../", features = ["testing"] }
 trycmd = "0.14.19"
 insta = { version = "1.34.0", features = ["redactions", "yaml", "filters"] }
diff --git a/examples/llm-candle-inference/Cargo.toml b/examples/llm-candle-inference/Cargo.toml
index 0d86b9805..5565537d6 100644
--- a/examples/llm-candle-inference/Cargo.toml
+++ b/examples/llm-candle-inference/Cargo.toml
@@ -39,7 +39,7 @@ required-features = []
 
 [dev-dependencies]
 serial_test = "3.0.0"
-rstest = "0.19.0"
+rstest = "0.21.0"
 loco-rs = { version = "*", path = "../../", default-features = false, features = [
   "cli",
   "testing",
diff --git a/starters/lightweight-service/Cargo.toml b/starters/lightweight-service/Cargo.toml
index 563d08a0a..44c5bd95f 100644
--- a/starters/lightweight-service/Cargo.toml
+++ b/starters/lightweight-service/Cargo.toml
@@ -27,7 +27,7 @@ required-features = []
 
 [dev-dependencies]
 serial_test = "*"
-rstest = "*"
+rstest = "0.21.0"
 loco-rs = { version = "0.6.2", default-features = false, features = [
   "testing",
   "cli",
diff --git a/starters/rest-api/Cargo.toml b/starters/rest-api/Cargo.toml
index 013f1a35e..e9a81a8d3 100644
--- a/starters/rest-api/Cargo.toml
+++ b/starters/rest-api/Cargo.toml
@@ -39,6 +39,6 @@ required-features = []
 
 [dev-dependencies]
 serial_test = "2.0.0"
-rstest = "0.18.2"
+rstest = "0.21.0"
 loco-rs = { version = "0.6.2", features = ["testing"] }
 insta = { version = "1.34.0", features = ["redactions", "yaml", "filters"] }
diff --git a/starters/saas/Cargo.toml b/starters/saas/Cargo.toml
index e589d20f7..cda3e9718 100644
--- a/starters/saas/Cargo.toml
+++ b/starters/saas/Cargo.toml
@@ -44,6 +44,6 @@ required-features = []
 
 [dev-dependencies]
 serial_test = "2.0.0"
-rstest = "0.18.2"
+rstest = "0.21.0"
 loco-rs = { version = "0.6.2", features = ["testing"] }
 insta = { version = "1.34.0", features = ["redactions", "yaml", "filters"] }