diff --git a/versions.lock b/versions.lock
index bdad207..733bdc4 100644
--- a/versions.lock
+++ b/versions.lock
@@ -3,7 +3,7 @@
 [Test dependencies]
 cglib:cglib-nodep:3.2.2 (1 constraints: 490ded24)
 com.google.code.findbugs:jsr305:3.0.2 (2 constraints: 1d0fb186)
-com.google.errorprone:error_prone_annotations:2.3.4 (2 constraints: 200f3287)
+com.google.errorprone:error_prone_annotations:2.4.0 (2 constraints: 1d0fd486)
 com.google.guava:failureaccess:1.0.1 (1 constraints: 140ae1b4)
 com.google.guava:guava:27.0.1-jre (2 constraints: c7135868)
 com.google.guava:listenablefuture:9999.0-empty-to-avoid-conflict-with-guava (1 constraints: bd17c918)
diff --git a/versions.props b/versions.props
index 00114c7..733388e 100644
--- a/versions.props
+++ b/versions.props
@@ -4,5 +4,5 @@ com.squareup.okhttp3:* = 3.14.1
 
 # conflict resolution
 com.google.code.findbugs:jsr305 = 3.0.2
-com.google.errorprone:error_prone_annotations = 2.3.4
+com.google.errorprone:error_prone_annotations = 2.4.0
 org.checkerframework:checker-qual = 2.5.3