diff --git a/golemcore/slack/plugin.yaml b/golemcore/slack/plugin.yaml
index f8d3416..7ce8c37 100644
--- a/golemcore/slack/plugin.yaml
+++ b/golemcore/slack/plugin.yaml
@@ -1,7 +1,7 @@
 id: golemcore/slack
 provider: golemcore
 name: slack
-version: 1.0.1
+version: 1.0.2
 pluginApiVersion: 1
 engineVersion: ">=0.0.0 <1.0.0"
 entrypoint: me.golemcore.plugins.golemcore.slack.SlackPluginBootstrap
diff --git a/golemcore/slack/pom.xml b/golemcore/slack/pom.xml
index 3d8190a..c338fd4 100644
--- a/golemcore/slack/pom.xml
+++ b/golemcore/slack/pom.xml
@@ -9,7 +9,7 @@
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
-    <version>1.0.1</version>
+    <version>1.0.2</version>
     <artifactId>golemcore-slack-plugin</artifactId>
     <name>golemcore/slack</name>
     <description>Slack Socket Mode channel plugin with interactive approvals for GolemCore</description>
diff --git a/golemcore/slack/src/main/java/me/golemcore/plugins/golemcore/slack/SlackPluginConfig.java b/golemcore/slack/src/main/java/me/golemcore/plugins/golemcore/slack/SlackPluginConfig.java
index 42ff3af..6913d20 100644
--- a/golemcore/slack/src/main/java/me/golemcore/plugins/golemcore/slack/SlackPluginConfig.java
+++ b/golemcore/slack/src/main/java/me/golemcore/plugins/golemcore/slack/SlackPluginConfig.java
@@ -1,5 +1,7 @@
 package me.golemcore.plugins.golemcore.slack;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -10,6 +12,7 @@
 import java.util.List;
 import java.util.Set;
 
+@JsonIgnoreProperties(ignoreUnknown = true)
 @Data
 @NoArgsConstructor
 @AllArgsConstructor
@@ -44,6 +47,7 @@ public void normalize() {
         allowedChannelIds = normalizeIdentifiers(allowedChannelIds);
     }
 
+    @JsonIgnore
     public boolean isConfigured() {
         return botToken != null && !botToken.isBlank()
                 && appToken != null && !appToken.isBlank();
diff --git a/golemcore/slack/src/test/java/me/golemcore/plugins/golemcore/slack/SlackPluginConfigServiceTest.java b/golemcore/slack/src/test/java/me/golemcore/plugins/golemcore/slack/SlackPluginConfigServiceTest.java
new file mode 100644
index 0000000..989da9d
--- /dev/null
+++ b/golemcore/slack/src/test/java/me/golemcore/plugins/golemcore/slack/SlackPluginConfigServiceTest.java
@@ -0,0 +1,73 @@
+package me.golemcore.plugins.golemcore.slack;
+
+import me.golemcore.plugin.api.runtime.PluginConfigurationService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.mockito.ArgumentCaptor;
+
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.mockito.Mockito.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+class SlackPluginConfigServiceTest {
+
+    private PluginConfigurationService pluginConfigurationService;
+    private SlackPluginConfigService service;
+
+    @BeforeEach
+    void setUp() {
+        pluginConfigurationService = mock(PluginConfigurationService.class);
+        service = new SlackPluginConfigService(pluginConfigurationService);
+    }
+
+    @Test
+    void shouldIgnoreLegacyConfiguredFieldWhenReadingStoredPluginConfig() {
+        when(pluginConfigurationService.getPluginConfig(SlackPluginConfigService.PLUGIN_ID)).thenReturn(Map.of(
+                "enabled", true,
+                "botToken", "xoxb-test",
+                "appToken", "xapp-test",
+                "replyInThread", false,
+                "configured", true,
+                "allowedUserIds", java.util.List.of("U123"),
+                "allowedChannelIds", java.util.List.of("C123")));
+
+        SlackPluginConfig config = service.getConfig();
+
+        assertEquals("xoxb-test", config.getBotToken());
+        assertEquals("xapp-test", config.getAppToken());
+        assertFalse(Boolean.TRUE.equals(config.getReplyInThread()));
+        assertEquals(java.util.List.of("U123"), config.getAllowedUserIds());
+        assertEquals(java.util.List.of("C123"), config.getAllowedChannelIds());
+    }
+
+    @Test
+    void shouldPersistNormalizedPluginConfigWithoutComputedFields() {
+        SlackPluginConfig config = SlackPluginConfig.builder()
+                .enabled(true)
+                .botToken(" xoxb-token ")
+                .appToken(" xapp-token ")
+                .replyInThread(null)
+                .allowedUserIds(java.util.List.of(" U123 ", "", "U123"))
+                .allowedChannelIds(java.util.List.of(" C123 ", "C123"))
+                .build();
+
+        service.save(config);
+
+        ArgumentCaptor<Map<String, Object>> captor = ArgumentCaptor.forClass(Map.class);
+        verify(pluginConfigurationService).savePluginConfig(eq(SlackPluginConfigService.PLUGIN_ID), captor.capture());
+
+        Map<String, Object> saved = captor.getValue();
+        assertEquals("xoxb-token", saved.get("botToken"));
+        assertEquals("xapp-token", saved.get("appToken"));
+        assertEquals(true, saved.get("enabled"));
+        assertEquals(true, saved.get("replyInThread"));
+        assertEquals(java.util.List.of("U123"), saved.get("allowedUserIds"));
+        assertEquals(java.util.List.of("C123"), saved.get("allowedChannelIds"));
+        assertFalse(saved.containsKey("configured"));
+    }
+}
diff --git a/registry/golemcore/slack/index.yaml b/registry/golemcore/slack/index.yaml
index 9ab1691..5c79458 100644
--- a/registry/golemcore/slack/index.yaml
+++ b/registry/golemcore/slack/index.yaml
@@ -1,8 +1,9 @@
 id: golemcore/slack
 owner: golemcore
 name: slack
-latest: 1.0.1
+latest: 1.0.2
 versions:
   - 1.0.0
   - 1.0.1
+  - 1.0.2
 source: "https://github.com/alexk-dev/golemcore-plugins/tree/main/golemcore/slack"
diff --git a/registry/golemcore/slack/versions/1.0.2.yaml b/registry/golemcore/slack/versions/1.0.2.yaml
new file mode 100644
index 0000000..8255903
--- /dev/null
+++ b/registry/golemcore/slack/versions/1.0.2.yaml
@@ -0,0 +1,13 @@
+id: golemcore/slack
+version: 1.0.2
+pluginApiVersion: 1
+engineVersion: ">=0.0.0 <1.0.0"
+artifactUrl: "dist/golemcore/slack/1.0.2/golemcore-slack-plugin-1.0.2.jar"
+checksumSha256: "b68c3377c5fbd511d7d8c1795897d8e1deee0cd94365bcd3e763742bb45fe572"
+publishedAt: "2026-03-18T21:59:14Z"
+sourceCommit: "e7faba7458c7cbaeeecec2d0a0a78f60de2392ae"
+entrypoint: me.golemcore.plugins.golemcore.slack.SlackPluginBootstrap
+sourceUrl: "https://github.com/alexk-dev/golemcore-plugins/tree/main/golemcore/slack"
+license: "Apache-2.0"
+maintainers:
+  - alexk-dev