diff --git a/client/Cargo.toml b/client/Cargo.toml
index bd0fb882..326c9ca9 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -44,7 +44,7 @@ default = ["use-repo-assets"]
 use-repo-assets = []
 
 [dev-dependencies]
-approx = "0.3.2"
+approx = "0.5.1"
 bencher = "0.1.5"
 renderdoc = "0.10.1"
 
diff --git a/common/Cargo.toml b/common/Cargo.toml
index 7aca1658..f40e9bd5 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -24,4 +24,4 @@ rand_pcg = "0.2.1"
 rand_distr = "0.3.0"
 
 [dev-dependencies]
-approx = "0.3.2"
+approx = "0.5.1"