diff --git a/cpp/ql/src/META-INF/MANIFEST.MF b/cpp/ql/src/META-INF/MANIFEST.MF
index 7c576345a8f..9297719168e 100644
--- a/cpp/ql/src/META-INF/MANIFEST.MF
+++ b/cpp/ql/src/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Semmle C/C++ Default Queries
 Bundle-SymbolicName: com.semmle.plugin.semmlecode.cpp.queries;singleton:=true
-Bundle-Version: 1.19.0.qualifier
+Bundle-Version: 1.18.0.qualifier
 Bundle-Vendor: Semmle Ltd.
 Bundle-ActivationPolicy: lazy
-Require-Bundle: com.semmle.plugin.qdt.ui;bundle-version="[1.19.0.qualifier,1.19.0.qualifier]"
+Require-Bundle: com.semmle.plugin.qdt.ui;bundle-version="[1.18.0.qualifier,1.18.0.qualifier]"
diff --git a/csharp/ql/src/META-INF/MANIFEST.MF b/csharp/ql/src/META-INF/MANIFEST.MF
index c552f161e73..9c1c8f2b1e1 100644
--- a/csharp/ql/src/META-INF/MANIFEST.MF
+++ b/csharp/ql/src/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Semmle C# Default Queries
 Bundle-SymbolicName: com.semmle.plugin.semmlecode.csharp.queries;singleton:=true
-Bundle-Version: 1.19.0.qualifier
+Bundle-Version: 1.18.0.qualifier
 Bundle-Vendor: Semmle Ltd.
 Bundle-ActivationPolicy: lazy
-Require-Bundle: com.semmle.plugin.qdt.ui;bundle-version="[1.19.0.qualifier, 1.19.0.qualifier]"
+Require-Bundle: com.semmle.plugin.qdt.ui;bundle-version="[1.18.0.qualifier, 1.18.0.qualifier]"
diff --git a/java/ql/src/META-INF/MANIFEST.MF b/java/ql/src/META-INF/MANIFEST.MF
index 48c3e9729b4..2e9435ab950 100644
--- a/java/ql/src/META-INF/MANIFEST.MF
+++ b/java/ql/src/META-INF/MANIFEST.MF
@@ -2,8 +2,8 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Semmle Default Java Queries
 Bundle-SymbolicName: com.semmle.plugin.semmlecode.queries;singleton:=true
-Bundle-Version: 1.19.0.qualifier
+Bundle-Version: 1.18.0.qualifier
 Bundle-Vendor: Semmle Ltd.
 Bundle-ActivationPolicy: lazy
-Require-Bundle: com.semmle.plugin.qdt.ui;bundle-version="[1.19.0.qualifier,1.19.0.qualifier]"
+Require-Bundle: com.semmle.plugin.qdt.ui;bundle-version="[1.18.0.qualifier,1.18.0.qualifier]"
 
diff --git a/javascript/ql/src/META-INF/MANIFEST.MF b/javascript/ql/src/META-INF/MANIFEST.MF
index f21bd7c3e89..fe4cf7cfb8c 100644
--- a/javascript/ql/src/META-INF/MANIFEST.MF
+++ b/javascript/ql/src/META-INF/MANIFEST.MF
@@ -2,7 +2,7 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Semmle JavaScript Default Queries
 Bundle-SymbolicName: com.semmle.plugin.semmlecode.javascript.queries;singleton:=true
-Bundle-Version: 1.19.0.qualifier
+Bundle-Version: 1.18.0.qualifier
 Bundle-Vendor: Semmle Ltd.
 Bundle-ActivationPolicy: lazy
-Require-Bundle: com.semmle.plugin.qdt.ui;bundle-version="[1.19.0.qualifier, 1.19.0.qualifier]"
+Require-Bundle: com.semmle.plugin.qdt.ui;bundle-version="[1.18.0.qualifier, 1.18.0.qualifier]"