diff --git a/app/witness-verifications.gradle b/app/witness-verifications.gradle
index 8ff44e4d1..a38813180 100644
--- a/app/witness-verifications.gradle
+++ b/app/witness-verifications.gradle
@@ -591,11 +591,11 @@ dependencyVerification {
         ['org.threeten:threetenbp:1.3.6',
          'f4c23ffaaed717c3b99c003e0ee02d6d66377fd47d866fec7d971bd8644fc1a7'],
 
-        ['org.whispersystems:signal-client-android:0.9.0',
-         'e58359105094103ba1b5960563d0980ce31319e0946558d722636e76ef6eb90c'],
+        ['org.whispersystems:signal-client-android:0.9.4',
+         '5b4d8e0b37701caefe6089bdf09667716fea5829f105373e4bfce3041e7c6387'],
 
-        ['org.whispersystems:signal-client-java:0.9.0',
-         '9b40d108f783acaef0692be162f461c15fe49507204d5334770f38f90eff5b09'],
+        ['org.whispersystems:signal-client-java:0.9.4',
+         '629fb84dbbf5663cbfda0cb87420b0f64ad9902088c575478b04009cce9cbf8a'],
 
         ['pl.tajchert:waitingdots:0.1.0',
          '2835d49e0787dbcb606c5a60021ced66578503b1e9fddcd7a5ef0cd5f095ba2c'],
diff --git a/build.gradle b/build.gradle
index cd5164cd9..66c1437dd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -35,7 +35,7 @@ ext {
 
     JAVA_VERSION = JavaVersion.VERSION_1_8
 
-    LIBSIGNAL_CLIENT_VERSION = '0.9.0'
+    LIBSIGNAL_CLIENT_VERSION = '0.9.4'
 }
 
 wrapper {
diff --git a/device-transfer/lib/witness-verifications.gradle b/device-transfer/lib/witness-verifications.gradle
index d24ef5aea..0373ac999 100644
--- a/device-transfer/lib/witness-verifications.gradle
+++ b/device-transfer/lib/witness-verifications.gradle
@@ -81,7 +81,7 @@ dependencyVerification {
         ['org.greenrobot:eventbus:3.0.0',
          '180d4212467df06f2fbc9c8d8a2984533ac79c87769ad883bc421612f0b4e17c'],
 
-        ['org.whispersystems:signal-client-java:0.9.0',
-         '9b40d108f783acaef0692be162f461c15fe49507204d5334770f38f90eff5b09'],
+        ['org.whispersystems:signal-client-java:0.9.4',
+         '629fb84dbbf5663cbfda0cb87420b0f64ad9902088c575478b04009cce9cbf8a'],
     ]
 }
diff --git a/libsignal/service/witness-verifications.gradle b/libsignal/service/witness-verifications.gradle
index 5283c0e99..2e0002f25 100644
--- a/libsignal/service/witness-verifications.gradle
+++ b/libsignal/service/witness-verifications.gradle
@@ -36,7 +36,7 @@ dependencyVerification {
         ['org.threeten:threetenbp:1.3.6',
          'f4c23ffaaed717c3b99c003e0ee02d6d66377fd47d866fec7d971bd8644fc1a7'],
 
-        ['org.whispersystems:signal-client-java:0.9.0',
-         '9b40d108f783acaef0692be162f461c15fe49507204d5334770f38f90eff5b09'],
+        ['org.whispersystems:signal-client-java:0.9.4',
+         '629fb84dbbf5663cbfda0cb87420b0f64ad9902088c575478b04009cce9cbf8a'],
     ]
 }