diff --git a/library/common/proguard-rules.txt b/library/common/proguard-rules.txt
index 8de310a867..abc8e1006d 100644
--- a/library/common/proguard-rules.txt
+++ b/library/common/proguard-rules.txt
@@ -16,3 +16,7 @@
 -dontwarn com.google.errorprone.annotations.**
 -dontwarn com.google.j2objc.annotations.**
 -dontwarn org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
+
+# Workaround for https://issuetracker.google.com/issues/112297269
+# This is needed for ProGuard but not R8.
+-keepnames class com.google.common.base.Function { *; }