diff --git a/build.xml b/build.xml
index dddb2b15f5..fe462550e2 100644
--- a/build.xml
+++ b/build.xml
@@ -335,6 +335,7 @@ under the License.
     <dependency prefix="ooxml.test.reflections" artifact="org.reflections:reflections:0.9.12" usage="ooxml-tests"/>
     <dependency prefix="ooxml.test.guava" artifact="com.google.guava:guava:30.1-jre" usage="ooxml-tests"/>
     <dependency prefix="ooxml.test.javassist" artifact="org.javassist:javassist:3.27.0-GA" usage="ooxml-tests"/>
+    <dependency prefix="ooxml.test.slf4j-api" artifact="org.slf4j:slf4j-api:1.7.30" usage="ooxml-tests"/>
 
     <!-- coverage libs -->
     <dependency prefix="jacoco" artifact="org.jacoco:jacoco:0.8.6" usage="util" packaging="zip"/>
@@ -790,6 +791,7 @@ under the License.
                     <available file="${ooxml.test.reflections.jar}"/>
                     <available file="${ooxml.test.guava.jar}"/>
                     <available file="${ooxml.test.javassist.jar}"/>
+                    <available file="${ooxml.test.slf4j-api.jar}"/>
                     <available file="${svg.xml-apis-ext.jar}"/>
                     <available file="${svg.batik-anim.jar}"/>
                     <available file="${svg.batik-awt-util.jar}"/>
@@ -828,6 +830,7 @@ under the License.
         <downloadfile src="${ooxml.test.reflections.url}" dest="${ooxml.test.reflections.jar}"/>
         <downloadfile src="${ooxml.test.guava.url}" dest="${ooxml.test.guava.jar}"/>
         <downloadfile src="${ooxml.test.javassist.url}" dest="${ooxml.test.javassist.jar}"/>
+        <downloadfile src="${ooxml.test.slf4j-api.url}" dest="${ooxml.test.slf4j-api.jar}"/>
         <downloadfile src="${svg.batik-anim.url}" dest="${svg.batik-anim.jar}"/>
         <downloadfile src="${svg.batik-awt-util.url}" dest="${svg.batik-awt-util.jar}"/>
         <downloadfile src="${svg.batik-bridge.url}" dest="${svg.batik-bridge.jar}"/>