diff --git a/build.sbt b/build.sbt
index eaf9035b..5acfa987 100644
--- a/build.sbt
+++ b/build.sbt
@@ -130,7 +130,7 @@ lazy val core = module("core")
       "com.disneystreaming.smithy4s" %% "smithy4s-http4s" % smithy4sVersion.value,
       "com.disneystreaming.smithy4s" %% "smithy4s-aws-http4s" % smithy4sVersion.value,
       "com.disneystreaming.smithy4s" % "smithy4s-protocol" % smithy4sVersion.value % Test,
-      "com.disneystreaming.alloy" % "alloy-core" % "0.2.8" % Test,
+      "com.disneystreaming.alloy" % "alloy-core" % "0.3.0" % Test,
       "software.amazon.smithy" % "smithy-aws-traits" % "1.45.0" % Test,
     ),
     Smithy4sCodegenPlugin.defaultSettings(Test),
diff --git a/modules/lsp/src/test/resources/test-workspaces/default/smithy-build.json b/modules/lsp/src/test/resources/test-workspaces/default/smithy-build.json
index dcb2b350..fa37646e 100644
--- a/modules/lsp/src/test/resources/test-workspaces/default/smithy-build.json
+++ b/modules/lsp/src/test/resources/test-workspaces/default/smithy-build.json
@@ -1,7 +1,7 @@
 {
   "imports": ["./weather.smithy", "./no-runner.smithy"],
   "mavenDependencies": [
-    "com.disneystreaming.alloy:alloy-core:0.2.8",
+    "com.disneystreaming.alloy:alloy-core:0.3.0",
     "com.disneystreaming.smithy4s:smithy4s-protocol:0.18.2"
   ]
 }
diff --git a/smithy-build.json b/smithy-build.json
index 4a732538..f34994dc 100644
--- a/smithy-build.json
+++ b/smithy-build.json
@@ -1,7 +1,7 @@
 {
   "imports": ["modules/core/src/test/smithy"],
   "mavenDependencies": [
-    "com.disneystreaming.alloy:alloy-core:0.2.8",
+    "com.disneystreaming.alloy:alloy-core:0.3.0",
     "com.disneystreaming.smithy4s:smithy4s-protocol:0.18.8",
     "software.amazon.smithy:smithy-aws-traits:1.45.0"
   ]