diff --git a/versions.lock b/versions.lock
index 27f508e8c..fde3423e7 100644
--- a/versions.lock
+++ b/versions.lock
@@ -12,7 +12,7 @@ com.github.zafarkhaja:java-semver:0.9.0 (1 constraints: 0b050636)
 com.google.code.findbugs:jsr305:3.0.2 (1 constraints: 980fcc86)
 com.google.errorprone:error_prone_annotations:2.3.4 (2 constraints: f420dc56)
 com.google.guava:guava:21.0 (3 constraints: f528d884)
-com.palantir.conjure.java:conjure-lib:5.17.1 (1 constraints: 4005573b)
+com.palantir.conjure.java:conjure-lib:5.18.0 (1 constraints: 4005593b)
 com.palantir.conjure.java.api:errors:2.13.0 (1 constraints: 1e1093a9)
 com.palantir.conjure.java.runtime:conjure-java-jackson-serialization:4.18.1 (1 constraints: 4005543b)
 com.palantir.ri:resource-identifier:1.1.0 (1 constraints: ea0f6899)
diff --git a/versions.props b/versions.props
index 966acb40b..47909f876 100644
--- a/versions.props
+++ b/versions.props
@@ -12,7 +12,7 @@ org.slf4j:* = 1.7.12
 one.util:streamex = 0.7.2
 org.assertj:assertj-core = 3.14.0
 com.palantir.conjure:conjure = 4.10.1
-com.palantir.conjure.java:* = 5.17.1
+com.palantir.conjure.java:* = 5.18.0
 com.fasterxml.jackson.dataformat:* = 2.10.2
 one.util:streamex = 0.7.2
 com.github.tomakehurst:wiremock = 2.24.0