diff --git a/bridge/build.gradle b/bridge/build.gradle
index 22d539591e..78f9623138 100644
--- a/bridge/build.gradle
+++ b/bridge/build.gradle
@@ -61,7 +61,7 @@ dependencies {
     compile "org.bouncycastle:bcprov-jdk15on:${bouncycastle_version}"
     compile "org.bouncycastle:bcpkix-jdk15on:${bouncycastle_version}"
     // Seems to be needed?
-    compile "com.github.corda.caffeine:caffeine:fifty_weight-SNAPSHOT"
+    compile "com.github.corda.caffeine:caffeine:cfca283c984d93d520bfcde234920ea0840402ee"
 
     // Log4J: logging framework (with SLF4J bindings)
     compile "org.apache.logging.log4j:log4j-slf4j-impl:$log4j_version"
diff --git a/client/rpc/build.gradle b/client/rpc/build.gradle
index 90be2d14f6..599e07d5ae 100644
--- a/client/rpc/build.gradle
+++ b/client/rpc/build.gradle
@@ -69,7 +69,7 @@ dependencies {
     compile project(':node-api')
 
     // For caches rather than guava
-    compile "com.github.corda.caffeine:caffeine:fifty_weight-SNAPSHOT"
+    compile "com.github.corda.caffeine:caffeine:cfca283c984d93d520bfcde234920ea0840402ee"
 
     // Unit testing helpers.
     testCompile "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
diff --git a/node-api/build.gradle b/node-api/build.gradle
index f6b00b430f..8fecc7ed66 100644
--- a/node-api/build.gradle
+++ b/node-api/build.gradle
@@ -50,7 +50,7 @@ dependencies {
     compile "com.fasterxml.jackson.core:jackson-databind:$jackson_version"
 
     // For caches rather than guava
-    compile "com.github.corda.caffeine:caffeine:fifty_weight-SNAPSHOT"
+    compile "com.github.corda.caffeine:caffeine:cfca283c984d93d520bfcde234920ea0840402ee"
 
     // Unit testing helpers.
     testCompile "junit:junit:$junit_version"
diff --git a/node/build.gradle b/node/build.gradle
index 3c7117c815..b23dd2eae7 100644
--- a/node/build.gradle
+++ b/node/build.gradle
@@ -90,7 +90,7 @@ dependencies {
     compile "com.google.guava:guava:$guava_version"
 
     // For caches rather than guava
-    compile "com.github.corda.caffeine:caffeine:fifty_weight-SNAPSHOT"
+    compile "com.github.corda.caffeine:caffeine:cfca283c984d93d520bfcde234920ea0840402ee"
 
     // For async logging
     compile "com.lmax:disruptor:$disruptor_version"
diff --git a/serialization/build.gradle b/serialization/build.gradle
index 944f4b857d..beb08bcb7e 100644
--- a/serialization/build.gradle
+++ b/serialization/build.gradle
@@ -26,7 +26,7 @@ dependencies {
     compile "org.iq80.snappy:snappy:$snappy_version"
 
     // For caches rather than guava
-    compile "com.github.corda.caffeine:caffeine:fifty_weight-SNAPSHOT"
+    compile "com.github.corda.caffeine:caffeine:cfca283c984d93d520bfcde234920ea0840402ee"
 
     // Unit testing helpers.
     testCompile "junit:junit:$junit_version"