diff --git a/.github/workflows/crystal.yml b/.github/workflows/crystal.yml
index b2d9f08..bf75807 100644
--- a/.github/workflows/crystal.yml
+++ b/.github/workflows/crystal.yml
@@ -16,8 +16,6 @@ jobs:
       matrix:
         stable: [true]
         crystal:
-          - 0.36.0
-          - 0.36.1
           - 1.0.0
           - 1.1.0
           - 1.1.1
diff --git a/shard.yml b/shard.yml
index a77c077..4e17b80 100644
--- a/shard.yml
+++ b/shard.yml
@@ -4,7 +4,7 @@ version: 1.2.3
 authors:
 - Andrew Hamon <andrew@hamon.cc>
 - Didactic Drunk <1479616+didactic-drunk@users.noreply.github.com>
-crystal: ">= 0.36.0"
+crystal: ">= 1.0.0"
 targets:
   blake2b_hash:
     main: examples/blake2b_hash.cr