diff --git a/src/kete_core/Cargo.toml b/src/kete_core/Cargo.toml
index 0bcd94f..5df1520 100644
--- a/src/kete_core/Cargo.toml
+++ b/src/kete_core/Cargo.toml
@@ -36,7 +36,7 @@ criterion = { version = "*", features = ["html_reports"] }
 # pprof is used for flame graphs, this is failing on windows currently so only
 # linux and mac are supported here.
 [target.'cfg(target_os = "linux")'.dev-dependencies]
-pprof = { version = "0.14", features = ["flamegraph", "criterion"] }
+pprof = { version = "0.15", features = ["flamegraph", "criterion"] }
 
 # macos needs the frame-pointer flag, however this doesn't function on linux
 [target.'cfg(target_os = "macos")'.dev-dependencies]