diff --git a/datatypes/Cargo.toml b/datatypes/Cargo.toml
index 1635f4be7..21a40756e 100644
--- a/datatypes/Cargo.toml
+++ b/datatypes/Cargo.toml
@@ -26,7 +26,7 @@ ocl = { git = "https://github.com/michaelmattig/ocl", branch = "tentative_master
 ordered-float = { version= "2.0", features = ["serde"] }
 paste = "1.0"
 postgres-types = { version = "0.2", features = ["derive", "with-chrono-0_4", "with-uuid-0_8"], optional = true }
-proj = "0.22"
+proj = "0.23"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 snafu = "0.6"