diff --git a/pkgs/development/compilers/crystal/default.nix b/pkgs/development/compilers/crystal/default.nix
index f101f596743..58e4b3b355d 100644
--- a/pkgs/development/compilers/crystal/default.nix
+++ b/pkgs/development/compilers/crystal/default.nix
@@ -270,7 +270,13 @@ rec {
     binary = crystal_0_35;
   };
 
-  crystal = crystal_0_36;
+  crystal_1_0 = generic {
+    version = "1.0.0";
+    sha256 = "sha256-RI+a3w6Rr+uc5jRf7xw0tOenR+q6qii/ewWfID6dbQ8=";
+    binary = crystal_0_36;
+  };
+
+  crystal = crystal_1_0;
 
   crystal2nix = callPackage ./crystal2nix.nix { };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 179c2c68f8d..5e37d37c0ad 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -9991,6 +9991,7 @@ in
     crystal_0_34
     crystal_0_35
     crystal_0_36
+    crystal_1_0
     crystal;
 
   crystal2nix = callPackage ../development/compilers/crystal2nix { };