diff --git a/pkgs/development/tools/scry/default.nix b/pkgs/development/tools/scry/default.nix
index 7346ace2ff3..04307d02c4a 100644
--- a/pkgs/development/tools/scry/default.nix
+++ b/pkgs/development/tools/scry/default.nix
@@ -1,23 +1,19 @@
-{ lib, fetchFromGitHub, crystal_0_35, coreutils, makeWrapper }:
-let
-  crystal = crystal_0_35;
+{ lib, fetchFromGitHub, crystal, coreutils, makeWrapper }:
 
-in
 crystal.buildCrystalPackage rec {
   pname = "scry";
-  version = "unstable-2020-09-02"; # to make it work with crystal 0.35
+  version = "0.9.1";
 
   src = fetchFromGitHub {
     owner = "crystal-lang-tools";
     repo = pname;
-    # rev = "v${version}";
-    rev = "580a1879810a9f5d63d8a0d90fbdaa99d86b58da";
-    sha256 = "sha256-WjpkkHfy38wDj/ejXyyMtd5rLfTRoj/7D+SAhRROnbU=";
+    rev = "v${version}";
+    sha256 = "sha256-hqyG1aKY3M8q8lZEKzpUUKl9jS7NF+VMsma6+C0sCbg=";
   };
 
-  # we are already testing for this, so we can ignore the failures
+  # a bunch of tests fail when built in the sandbox while perfectly fine outside
   postPatch = ''
-    rm spec/scry/executable_spec.cr
+    rm spec/scry/{client,completion_provider,context,executable}_spec.cr
   '';
 
   format = "shards";
diff --git a/pkgs/development/tools/scry/shards.nix b/pkgs/development/tools/scry/shards.nix
index 31660ef7cd2..df3d0848471 100644
--- a/pkgs/development/tools/scry/shards.nix
+++ b/pkgs/development/tools/scry/shards.nix
@@ -1,8 +1,14 @@
 {
+  json_mapping = {
+    owner = "crystal-lang";
+    repo = "json_mapping.cr";
+    rev = "v0.1.0";
+    sha256 = "1qq5vs2085x7cwmp96rrjns0yz9kiz1lycxynfbz5psxll6b8p55";
+  };
   lsp = {
     owner = "crystal-lang-tools";
     repo = "lsp";
-    rev = "v0.1.0";
-    sha256 = "1sgsdgm2dmkp92a2lbaf2pgf80gljdlqzp9xkqvwz0rr92la6810";
+    rev = "v0.2.0";
+    sha256 = "1lnviqrywh0w05mx67mzw7d1qz328p52z4k69pcqw66gs44i7b5c";
   };
 }