diff --git a/partiql-lang/build.gradle.kts b/partiql-lang/build.gradle.kts
index be2b176d4..9fe77606d 100644
--- a/partiql-lang/build.gradle.kts
+++ b/partiql-lang/build.gradle.kts
@@ -32,11 +32,11 @@ dependencies {
     antlr(Deps.antlr)
     api(project(":lib:isl"))
     api(project(":partiql-spi"))
+    api(project(":partiql-types"))
     api(Deps.ionElement)
     api(Deps.ionJava)
     api(Deps.pigRuntime)
     // libs are included in partiql-lang-kotlin JAR
-    libs(project(":partiql-types"))
     libs(project(":partiql-plan"))
     implementation(Deps.antlrRuntime)
     implementation(Deps.csv)
diff --git a/partiql-spi/build.gradle.kts b/partiql-spi/build.gradle.kts
index 32a8735fa..d7995a3b6 100644
--- a/partiql-spi/build.gradle.kts
+++ b/partiql-spi/build.gradle.kts
@@ -20,7 +20,7 @@ plugins {
 
 dependencies {
     api(Deps.ionElement)
-    implementation(project(":partiql-types"))
+    api(project(":partiql-types"))
 }
 
 publish {
diff --git a/partiql-types/build.gradle.kts b/partiql-types/build.gradle.kts
index 878d5fbfd..4bc426ec2 100644
--- a/partiql-types/build.gradle.kts
+++ b/partiql-types/build.gradle.kts
@@ -15,8 +15,15 @@
 
 plugins {
     id(Plugins.conventions)
+    id(Plugins.publish)
 }
 
 dependencies {
     implementation(Deps.ionElement)
 }
+
+publish {
+    artifactId = "partiql-types"
+    name = "PartiQL Types"
+    description = "The core PartiQL types."
+}