diff --git a/pbjson-build/Cargo.toml b/pbjson-build/Cargo.toml
index 17e766e..cfbde54 100644
--- a/pbjson-build/Cargo.toml
+++ b/pbjson-build/Cargo.toml
@@ -11,8 +11,8 @@ repository = "https://github.com/influxdata/pbjson"
 
 [dependencies]
 heck = "0.4"
-prost = "0.12"
-prost-types = "0.12"
+prost = "0.13"
+prost-types = "0.13"
 itertools = "0.11"
 
 [dev-dependencies]
diff --git a/pbjson-test/Cargo.toml b/pbjson-test/Cargo.toml
index 7113ac5..8d70562 100644
--- a/pbjson-test/Cargo.toml
+++ b/pbjson-test/Cargo.toml
@@ -7,7 +7,7 @@ description = "Test resources for pbjson converion"
 repository = "https://github.com/influxdata/pbjson"
 
 [dependencies]
-prost = "0.12"
+prost = "0.13"
 pbjson = { path = "../pbjson" }
 pbjson-types = { path = "../pbjson-types" }
 serde = { version = "1.0", features = ["derive"] }
@@ -24,5 +24,5 @@ chrono = "0.4"
 serde_json = "1.0"
 
 [build-dependencies]
-prost-build = "0.12"
+prost-build = "0.13"
 pbjson-build = { path = "../pbjson-build" }
diff --git a/pbjson-types/Cargo.toml b/pbjson-types/Cargo.toml
index 23c1fdf..54ef3e1 100644
--- a/pbjson-types/Cargo.toml
+++ b/pbjson-types/Cargo.toml
@@ -14,12 +14,12 @@ exclude = ["protos/*"]
 bytes = "1.0"
 chrono = { version = "0.4", default-features = false, features = ["alloc"] }
 pbjson = { path = "../pbjson", version = "0.6" }
-prost = "0.12"
+prost = "0.13"
 serde = { version = "1.0", features = ["derive"] }
 
 [dev-dependencies]
 serde_json = "1.0"
 
 [build-dependencies] # In alphabetical order
-prost-build = "0.12"
+prost-build = "0.13"
 pbjson-build = { path = "../pbjson-build", version = "0.6" }