diff --git a/Cargo.toml b/Cargo.toml
index 0d17f8ac..e27d862b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -71,10 +71,10 @@ nalgebra-macros = { version = "0.1", path = "nalgebra-macros", optional = true }
 typenum        = "1.12"
 rand-package   = { package = "rand", version = "0.8", optional = true, default-features = false }
 num-traits     = { version = "0.2", default-features = false }
-num-complex    = { version = "0.4", default-features = false } # { version = "0.4", default-features = false }
+num-complex    = { version = "0.4", git = "https://github.com/zyansheep/num-complex", default-features = false } # { version = "0.4", default-features = false }
 num-rational   = { version = "0.4", default-features = false }
 approx         = { version = "0.5", default-features = false }
-simba          = { version = "0.7", default-features = false }
+simba          = { version = "0.7.0", default-features = false }
 alga           = { version = "0.9", default-features = false, optional = true }
 rand_distr     = { version = "0.4", default-features = false, optional = true }
 matrixmultiply = { version = "0.3", optional = true }