diff --git a/Cargo.toml b/Cargo.toml
index 4ef3bccf..b13386b1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "scryer-prolog"
-version = "0.8.37"
+version = "0.8.39"
 authors = ["Mark Thom <markjordanthom@gmail.com>"]
 repository = "https://github.com/mthom/scryer-prolog"
 description = "A modern Prolog implementation written mostly in Rust."
@@ -14,7 +14,7 @@ cfg-if = "0.1.7"
 downcast = "0.10.0"
 num = "0.2"
 ordered-float = "0.5.0"
-prolog_parser = "0.8.12"
+prolog_parser = "0.8.13"
 readline_rs_compat = { version = "0.1.7", optional = true }
 ref_thread_local = "0.0.0"