diff --git a/lib-extra/build.gradle b/lib-extra/build.gradle
index d2d6542a52..491531f0c7 100644
--- a/lib-extra/build.gradle
+++ b/lib-extra/build.gradle
@@ -7,7 +7,7 @@ version = rootProject.spotlessChangelog.versionNext
 apply from: rootProject.file('gradle/java-setup.gradle')
 apply from: rootProject.file('gradle/java-publish.gradle')
 
-String VER_SOLSTICE = '0.19.2'
+String VER_SOLSTICE = '1.0.0'
 dependencies {
 	api project(':lib')
 	// misc useful utilities
diff --git a/lib-extra/src/main/java/com/diffplug/spotless/extra/EquoBasedStepBuilder.java b/lib-extra/src/main/java/com/diffplug/spotless/extra/EquoBasedStepBuilder.java
index 2c3d083b1b..5283321cec 100644
--- a/lib-extra/src/main/java/com/diffplug/spotless/extra/EquoBasedStepBuilder.java
+++ b/lib-extra/src/main/java/com/diffplug/spotless/extra/EquoBasedStepBuilder.java
@@ -88,7 +88,7 @@ EquoBasedStepBuilder.State get() throws Exception {
 		var query = model(formatterVersion).query(P2ClientCache.PREFER_OFFLINE, P2QueryCache.ALLOW);
 		var classpath = new ArrayList<File>();
 		var mavenDeps = new ArrayList<String>();
-		mavenDeps.add("dev.equo.ide:solstice:0.19.2");
+		mavenDeps.add("dev.equo.ide:solstice:1.0.0");
 		mavenDeps.add("com.diffplug.durian:durian-swt.os:4.1.1");
 		mavenDeps.addAll(query.getJarsOnMavenCentral());
 		classpath.addAll(mavenProvisioner.provisionWithTransitives(false, mavenDeps));