diff --git a/gnu/packages/crates-graphics.scm b/gnu/packages/crates-graphics.scm
index 813cdba685..f84248900f 100644
--- a/gnu/packages/crates-graphics.scm
+++ b/gnu/packages/crates-graphics.scm
@@ -1556,7 +1556,7 @@ nicely with Piston libraries.")
         ("rust-rusttype" ,rust-rusttype-0.7)
         ("rust-piston-texture" ,rust-piston-texture-0.8)
         ("rust-piston-viewport" ,rust-piston-viewport-1)
-        ("rust-read-color" ,rust-read-color-1.0)
+        ("rust-read-color" ,rust-read-color-1)
         ("rust-vecmath" ,rust-vecmath-1.0)
         ("rust-fnv" ,rust-fnv-1))))
     (home-page "https://github.com/pistondevelopers/graphics")
diff --git a/gnu/packages/crates-io.scm b/gnu/packages/crates-io.scm
index 2d8b419184..843cedcbb7 100644
--- a/gnu/packages/crates-io.scm
+++ b/gnu/packages/crates-io.scm
@@ -28125,7 +28125,7 @@ reference counting.")
 @code{rdrand} and @code{rdseed} instructions")
     (license license:isc)))
 
-(define-public rust-read-color-1.0
+(define-public rust-read-color-1
   (package
     (name "rust-read-color")
     (version "1.0.0")