diff --git a/build.gradle b/build.gradle
index f403d3e..69ca77c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -16,7 +16,7 @@ apply plugin: "kotlin"
 
 intellij {
   pluginName 'Gradle Dependencies Helper'
-  version = 'IC-2017.1'
+  version = 'IU-2017.2.5'
   updateSinceUntilBuild = false
   plugins = ['Groovy', 'gradle']
 }
@@ -38,5 +38,5 @@ dependencies {
 }
 
 task wrapper(type: Wrapper) {
-  gradleVersion = '4.1'
+  gradleVersion = '4.3.1'
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 5cbbc09..321b26e 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Fri Aug 11 21:33:36 JST 2017
+#Fri Aug 11 21:55:48 JST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/src/main/java/siosio/MavenFinder.kt b/src/main/java/siosio/MavenFinder.kt
index e8d410d..045a390 100644
--- a/src/main/java/siosio/MavenFinder.kt
+++ b/src/main/java/siosio/MavenFinder.kt
@@ -15,11 +15,11 @@ class MavenFinder {
     /** バージョン番号を抽出する正規表現 */
     private val VERSION_PATTERN = Regex("\\{\"id\":\"([^\"]+)\"")
 
-    private const val FIND_URL = "http://search.maven.org/solrsearch/select?q=a:\"%s\"&core=gav&rows=30&wt=json"
+    private const val FIND_URL = "http://search.maven.org/solrsearch/select?q=a:%s&core=gav&rows=50&wt=json"
 
     /** バージョ番号を取得するURL */
     private const val FIND_VERSION_URL =
-        "http://search.maven.org/solrsearch/select?q=g:\"%s\"+AND+a:\"%s\"&rows=20&core=gav&wt=json"
+        "http://search.maven.org/solrsearch/select?q=g:%s+AND+a:%s&rows=20&core=gav&wt=json"
 
     fun MatchResult.group(index: Int) = this.groups.get(index)!!.value
 
diff --git a/src/main/resources/META-INF/plugin.xml b/src/main/resources/META-INF/plugin.xml
index 0859517..bc38221 100644
--- a/src/main/resources/META-INF/plugin.xml
+++ b/src/main/resources/META-INF/plugin.xml
@@ -1,7 +1,7 @@
-<idea-plugin version="2">
+<idea-plugin>
   <id>GradleDependenciesHelper</id>
   <name>Gradle Dependencies Helper</name>
-  <version>1.8</version>
+  <version>1.9</version>
   <vendor email="siosio12@gmail.com" url="https://github.com/siosio/GradleDependenciesHelperPlugin">siosio</vendor>
   <depends>org.jetbrains.plugins.gradle</depends>
   <depends>org.intellij.groovy</depends>