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diff --git a/Cargo.toml b/Cargo.toml
index b8aef1c..ef75327 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "polygon-art"
-version = "1.0.1"
+version = "1.0.2"
 authors = ["Ingolf Wagner <contact@ingolf-wagner.de>"]
 edition = "2018"
 
@@ -14,7 +14,7 @@ keywords = ["image", "drawing", "art", "geo"]
 categories = ["graphics","multimedia::images", "rendering","visualization"]
 license = "GPL-3.0"
 maintenance = { status = "actively-developed" }
-exclude = [ "shell.nix", "default.nix" ]
+exclude = [ "shell.nix", "default.nix", "flake.nix" ]
 
 [dependencies]
 cairo-rs = { version = "0.9", features = [ "png", "svg" ] }
diff --git a/README.md b/README.md
index 1085afc..8cf95de 100644
--- a/README.md
+++ b/README.md
@@ -67,6 +67,8 @@ nix build
 
 ``` shell
 cargo update # to update Cargo.lock
+# or
+cargo update --offline # to update Cargo.lock
 ```
 and
 
diff --git a/default.nix b/default.nix
index 432eec3..51d1852 100644
--- a/default.nix
+++ b/default.nix
@@ -13,9 +13,10 @@
 rustPlatform.buildRustPackage {
 
   pname = "polygon-art";
-  version = "1.0.1";
+  version = "1.0.2";
   src = ./.;
-  cargoSha256 = "0sgk4hw77cxqbqzd258fz67r7fpjblkm7cqh14n5f1c43y8vgxa0";
+  #cargoHash = lib.fakeHash;
+  cargoHash = "sha256-MCFezfCu/PktFdB+XUnagtz9g65C90F4qa3y4Ser/nQ=";
   verifyCargoDeps = true;
 
   # Needed so bindgen can find libclang.so