diff --git a/Cargo.lock b/Cargo.lock
index 879b7663d3b1b..e6b4085541974 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6698,9 +6698,9 @@ dependencies = [
 
 [[package]]
 name = "proptest"
-version = "1.3.1"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c003ac8c77cb07bb74f5f198bce836a689bcd5a42574612bf14d17bfd08c20e"
+checksum = "b4c2511913b88df1637da85cc8d96ec8e43a3f8bb8ccb71ee1ac240d6f3df58d"
 dependencies = [
  "bit-set",
  "bit-vec",
@@ -6710,7 +6710,7 @@ dependencies = [
  "rand 0.8.5",
  "rand_chacha 0.3.1",
  "rand_xorshift",
- "regex-syntax 0.7.5",
+ "regex-syntax 0.8.2",
  "rusty-fork",
  "tempfile",
  "unarray",
diff --git a/Cargo.toml b/Cargo.toml
index 287624f94bf50..65eef1683f6a1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -352,7 +352,7 @@ criterion = { version = "0.5.1", features = ["html_reports", "async_tokio"] }
 itertools = { version = "0.11.0", default-features = false, features = ["use_alloc"] }
 libc = "0.2.149"
 similar-asserts = "1.5.0"
-proptest = "1.3"
+proptest = "1.5"
 quickcheck = "1.0.3"
 reqwest = { version = "0.11", features = ["json"] }
 rstest = {version = "0.18.2"}
diff --git a/lib/vector-buffers/Cargo.toml b/lib/vector-buffers/Cargo.toml
index 819a1b9bff9f1..b090cd1fa39f5 100644
--- a/lib/vector-buffers/Cargo.toml
+++ b/lib/vector-buffers/Cargo.toml
@@ -39,7 +39,7 @@ hdrhistogram = "7.5.2"
 metrics-tracing-context = { version = "0.14.0", default-features = false }
 metrics-util = { version = "0.15.1", default-features = false, features = ["debugging"] }
 once_cell = "1.18"
-proptest = "1.3"
+proptest = "1.5"
 quickcheck = "1.0"
 rand = "0.8.5"
 serde_yaml = { version = "0.9", default-features = false }
diff --git a/lib/vector-core/Cargo.toml b/lib/vector-core/Cargo.toml
index d870bf075ed31..0e7f46e9a5de4 100644
--- a/lib/vector-core/Cargo.toml
+++ b/lib/vector-core/Cargo.toml
@@ -34,7 +34,7 @@ ordered-float = { version = "4.1.1", default-features = false }
 openssl = { version = "0.10.57", default-features = false, features = ["vendored"] }
 parking_lot = { version = "0.12.1", default-features = false }
 pin-project.workspace = true
-proptest = { version = "1.3", optional = true }
+proptest = { version = "1.5", optional = true }
 prost-types = { version = "0.12", default-features = false }
 prost = { version = "0.12", default-features = false, features = ["std"] }
 quanta = { version = "0.12.1", default-features = false }
@@ -80,7 +80,7 @@ criterion = { version = "0.5.1", features = ["html_reports"] }
 env-test-util = "1.0.1"
 quickcheck = "1"
 quickcheck_macros = "1"
-proptest = "1.3"
+proptest = "1.5"
 similar-asserts = "1.5.0"
 tokio-test = "0.4.3"
 toml = { version = "0.8.6", default-features = false, features = ["parse"] }
diff --git a/lib/vector-stream/Cargo.toml b/lib/vector-stream/Cargo.toml
index 398bb50df4400..5538ded8a9f5b 100644
--- a/lib/vector-stream/Cargo.toml
+++ b/lib/vector-stream/Cargo.toml
@@ -19,6 +19,6 @@ vector-common = { path = "../vector-common" }
 vector-core = { path = "../vector-core" }
 
 [dev-dependencies]
-proptest = "1.3"
+proptest = "1.5"
 rand = "0.8.5"
 rand_distr = "0.4.3"