diff --git a/.idea/libraries/Gradle__org_puimula_voikko_libvoikko_4_0_1.xml b/.idea/libraries/Gradle__org_puimula_voikko_libvoikko_4_0_1.xml
deleted file mode 100644
index 0e643b0..0000000
--- a/.idea/libraries/Gradle__org_puimula_voikko_libvoikko_4_0_1.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<component name="libraryTable">
-  <library name="Gradle: org.puimula.voikko:libvoikko:4.0.1">
-    <CLASSES>
-      <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/org.puimula.voikko/libvoikko/4.0.1/694a356c9765ff4210ba418912c04df3ea1f355/libvoikko-4.0.1.jar!/" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES>
-      <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/org.puimula.voikko/libvoikko/4.0.1/31262f5fb2a79ad447d81e79bcbdc4e6a8feb3b6/libvoikko-4.0.1-sources.jar!/" />
-    </SOURCES>
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/Gradle__org_puimula_voikko_libvoikko_4_1_1.xml b/.idea/libraries/Gradle__org_puimula_voikko_libvoikko_4_1_1.xml
new file mode 100644
index 0000000..9e46361
--- /dev/null
+++ b/.idea/libraries/Gradle__org_puimula_voikko_libvoikko_4_1_1.xml
@@ -0,0 +1,11 @@
+<component name="libraryTable">
+  <library name="Gradle: org.puimula.voikko:libvoikko:4.1.1">
+    <CLASSES>
+      <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/org.puimula.voikko/libvoikko/4.1.1/d0061d7970214614b32e92ec016aa59333331b24/libvoikko-4.1.1.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$USER_HOME$/.gradle/caches/modules-2/files-2.1/org.puimula.voikko/libvoikko/4.1.1/1cf9c2a966f4a8958ffd89017a5b2499d16c5790/libvoikko-4.1.1-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/modules/elasticsearch-analysis-voikko.iml b/.idea/modules/elasticsearch-analysis-voikko.iml
index bfe5b0b..686da12 100644
--- a/.idea/modules/elasticsearch-analysis-voikko.iml
+++ b/.idea/modules/elasticsearch-analysis-voikko.iml
@@ -24,7 +24,7 @@
         <SOURCES />
       </library>
     </orderEntry>
-    <orderEntry type="library" name="Gradle: org.puimula.voikko:libvoikko:4.0.1" level="project" />
+    <orderEntry type="library" name="Gradle: org.puimula.voikko:libvoikko:4.1.1" level="project" />
     <orderEntry type="library" scope="PROVIDED" name="Gradle: org.elasticsearch:elasticsearch:7.3.2" level="project" />
     <orderEntry type="library" scope="PROVIDED" name="Gradle: org.locationtech.spatial4j:spatial4j:0.7" level="project" />
     <orderEntry type="library" scope="PROVIDED" name="Gradle: org.locationtech.jts:jts-core:1.15.0" level="project" />
diff --git a/build.gradle b/build.gradle
index f663cd1..79a99e0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -28,7 +28,7 @@ javadoc {
 }
 
 dependencies {
-    compile 'org.puimula.voikko:libvoikko:4.0.1'
+    compile 'org.puimula.voikko:libvoikko:4.1.1'
 }
 
 esplugin {
diff --git a/licenses/libvoikko-4.0.1.jar.sha1 b/licenses/libvoikko-4.0.1.jar.sha1
deleted file mode 100644
index 15283a6..0000000
--- a/licenses/libvoikko-4.0.1.jar.sha1
+++ /dev/null
@@ -1 +0,0 @@
-0694a356c9765ff4210ba418912c04df3ea1f355
\ No newline at end of file
diff --git a/licenses/libvoikko-4.1.1.jar.sha1 b/licenses/libvoikko-4.1.1.jar.sha1
new file mode 100644
index 0000000..4dca150
--- /dev/null
+++ b/licenses/libvoikko-4.1.1.jar.sha1
@@ -0,0 +1 @@
+d0061d7970214614b32e92ec016aa59333331b24
\ No newline at end of file