diff --git a/Cargo.lock b/Cargo.lock
index 9ec050e..3867ab9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3347,9 +3347,9 @@ dependencies = [
 
 [[package]]
 name = "testcontainers"
-version = "0.26.0"
+version = "0.26.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a347cac4368ba4f1871743adb27dc14829024d26b1763572404726b0b9943eb8"
+checksum = "a81ec0158db5fbb9831e09d1813fe5ea9023a2b5e6e8e0a5fe67e2a820733629"
 dependencies = [
  "astral-tokio-tar",
  "async-trait",
diff --git a/Cargo.toml b/Cargo.toml
index aa3f778..0281f62 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ jsonschema = "0.33.0"
 reqwest = { version = "0.12.28", features = ["json", "stream"] }
 serde = { version = "1.0.228", features = ["derive"] }
 serde_json = { version = "1.0.148", features = ["raw_value"] }
-testcontainers = { version = "0.26.0", features = [
+testcontainers = { version = "0.26.3", features = [
   "http_wait",
 ], optional = true }
 thiserror = "2.0.17"
@@ -45,7 +45,7 @@ rand = { version = "0.8", optional = true }
 polars = { version = "0.44", default-features = false, features = ["lazy", "dtype-datetime"], optional = true }
 
 [dev-dependencies]
-testcontainers = { version = "0.26.0", features = ["http_wait"] }
+testcontainers = { version = "0.26.3", features = ["http_wait"] }
 tokio = { version = "1.48.0", features = ["full"] }
 tokio-test = "0.4.4"