diff --git a/BUILD b/BUILD
index d73e553..d74886f 100644
--- a/BUILD
+++ b/BUILD
@@ -12,7 +12,7 @@
     ],
     resources = glob(["src/main/resources/**/*"]),
     deps = [
-        "@tika-core//jar",
+        "@mime-types//jar",
     ],
 )
 
@@ -20,7 +20,7 @@
 
 TEST_DEPS = PLUGIN_DEPS + PLUGIN_TEST_DEPS + [
     "@commons-io//jar",
-    "@tika-core//jar",
+    "@mime-types//jar",
     ":uploadvalidator__plugin",
 ]
 
diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index 8d85336..6ef4aa8 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -7,7 +7,7 @@
         sha1 = "83b5b8a7ba1c08f9e8c8ff2373724e33d3c1e22a",
     )
     maven_jar(
-        name = "tika-core",
-        artifact = "org.apache.tika:tika-core:1.24.1",
-        sha1 = "703e65fb300d1425d4ad7b68c21c7795bb7a95c3",
-    )
+        name = "mime-types",
+        artifact = "org.overviewproject:mime-types:0.1.3",
+        sha1 = "63ebd860cdad2f8a5fec89ae3238970607d943a3",
+    )
\ No newline at end of file
diff --git a/src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ContentTypeUtil.java b/src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ContentTypeUtil.java
index 67ae289..bb6f9db 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ContentTypeUtil.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/uploadvalidator/ContentTypeUtil.java
@@ -29,11 +29,9 @@
 import java.io.InputStream;
 import java.util.concurrent.ExecutionException;
 import java.util.regex.Pattern;
-import org.apache.tika.Tika;
-import org.apache.tika.config.TikaConfig;
-import org.apache.tika.io.TikaInputStream;
-import org.apache.tika.metadata.Metadata;
 import org.eclipse.jgit.lib.ObjectLoader;
+import org.overviewproject.mime_types.GetBytesException;
+import org.overviewproject.mime_types.MimeTypeDetector;
 
 public class ContentTypeUtil {
   private static final String KEY_BINARY_TYPES = "binaryTypes";
@@ -68,7 +66,7 @@
   }
 
   private final LoadingCache<String, Pattern> patternCache;
-  private final Tika tika = new Tika(TikaConfig.getDefaultConfig());
+  private final MimeTypeDetector detector = new MimeTypeDetector();
 
   @Inject
   ContentTypeUtil(@Named(CACHE_NAME) LoadingCache<String, Pattern> patternCache) {
@@ -83,9 +81,11 @@
   }
 
   public String getContentType(InputStream is, String pathname) throws IOException {
-    Metadata metadata = new Metadata();
-    metadata.set(Metadata.RESOURCE_NAME_KEY, pathname);
-    return tika.detect(TikaInputStream.get(is), metadata);
+    try {
+      return detector.detectMimeType(pathname, is);
+    } catch (GetBytesException e) {
+      throw new IOException(e);
+    }
   }
 
   @VisibleForTesting
diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index 5a2e50c..86f2015 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -109,7 +109,7 @@
     If there is a NUL byte in the first 8k then the file will be considered
     binary regardless of this setting.
 
-	To detect content types [Apache Tika library][2] is used.
+	To detect content types the [overviewproject mime-types library][2] is used.
 
     Content type can be specified as a string, wildcard or a regular expression,
     for example:
@@ -154,8 +154,9 @@
     This check does not run on [binary files][4]
 
 [1]: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html
-[2]: https://tika.apache.org/
-[3]: https://tika.apache.org/1.12/formats.html#Full_list_of_Supported_Formats
+[2]: https://github.com/overview/mime-types is a successor of the original
+     project http://sourceforge.net/p/mime-util/ which seems to be unmaintained
+[3]: supports the mime types supported by https://gitlab.freedesktop.org/xdg/shared-mime-info
 [4]: #binary_type
 
 plugin.@PLUGIN@.blockedContentType
@@ -164,7 +165,7 @@
     This check looks for blocked content types. If the check finds a
     blocked content type the push will be rejected.
 
-	To detect content types [Apache Tika library][2] is used.
+	To detect content types the [overviewproject mime-types library][2] is used.
 
     Content type can be specified as a string, wildcard or a regular expression,
     for example:
diff --git a/src/test/java/com/googlesource/gerrit/plugins/uploadvalidator/MimeTypeDetection.java b/src/test/java/com/googlesource/gerrit/plugins/uploadvalidator/MimeTypeDetection.java
index ac38404..040ae6c 100644
--- a/src/test/java/com/googlesource/gerrit/plugins/uploadvalidator/MimeTypeDetection.java
+++ b/src/test/java/com/googlesource/gerrit/plugins/uploadvalidator/MimeTypeDetection.java
@@ -16,19 +16,17 @@
 
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
-import org.apache.tika.Tika;
-import org.apache.tika.config.TikaConfig;
-import org.apache.tika.io.TikaInputStream;
-import org.apache.tika.metadata.Metadata;
+import org.overviewproject.mime_types.GetBytesException;
+import org.overviewproject.mime_types.MimeTypeDetector;
 
 class MimeTypeDetection {
   public String getMimeType(String path, byte[] content) throws IOException {
-    Tika tika = new Tika(TikaConfig.getDefaultConfig());
-
-    Metadata metadata = new Metadata();
-    metadata.set(Metadata.RESOURCE_NAME_KEY, path);
-
+    MimeTypeDetector detector = new MimeTypeDetector();
     ByteArrayInputStream bis = new ByteArrayInputStream(content);
-    return tika.detect(TikaInputStream.get(bis), metadata);
+    try {
+      return detector.detectMimeType(path, bis);
+    } catch (GetBytesException e) {
+      throw new IOException(e);
+    }
   }
 }