diff --git a/about.txt b/about.txt
index 136ab795f4..031734bbb3 100644
--- a/about.txt
+++ b/about.txt
@@ -41,9 +41,6 @@ http://plantuml.com/
 Sat4J
 http://www.sat4j.org/
 
-SLF4J
-http://www.slf4j.org/
-
 Microsoft Corporation
 https://github.com/Z3Prover/
 
diff --git a/code/languages/com.mbeddr.mpsutil/solutions/com.mbeddr.mpsutil.httpsupport.rt/com.mbeddr.mpsutil.httpsupport.rt.msd b/code/languages/com.mbeddr.mpsutil/solutions/com.mbeddr.mpsutil.httpsupport.rt/com.mbeddr.mpsutil.httpsupport.rt.msd
index fe868c6947..3017421777 100644
--- a/code/languages/com.mbeddr.mpsutil/solutions/com.mbeddr.mpsutil.httpsupport.rt/com.mbeddr.mpsutil.httpsupport.rt.msd
+++ b/code/languages/com.mbeddr.mpsutil/solutions/com.mbeddr.mpsutil.httpsupport.rt/com.mbeddr.mpsutil.httpsupport.rt.msd
@@ -7,8 +7,6 @@
     <modelRoot contentPath="${module}" type="java_classes">
       <sourceRoot location="lib/javax.servlet-api-3.1.0.jar" />
       <sourceRoot location="lib/jetty-all-9.4.8.v20171121-uber.jar" />
-      <sourceRoot location="lib/slf4j-api-1.7.10.jar" />
-      <sourceRoot location="lib/slf4j-log4j12-1.7.10.jar" />
     </modelRoot>
   </models>
   <facets>
diff --git a/licenses/slf4j_license.txt b/licenses/slf4j_license.txt
deleted file mode 100644
index ff63bd4e13..0000000000
--- a/licenses/slf4j_license.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-http://www.slf4j.org/license.html
-
-Copyright (c) 2004-2013 QOS.ch
- All rights reserved.
-
- Permission is hereby granted, free  of charge, to any person obtaining
- a  copy  of this  software  and  associated  documentation files  (the
- "Software"), to  deal in  the Software without  restriction, including
- without limitation  the rights to  use, copy, modify,  merge, publish,
- distribute,  sublicense, and/or sell  copies of  the Software,  and to
- permit persons to whom the Software  is furnished to do so, subject to
- the following conditions:
- 
- The  above  copyright  notice  and  this permission  notice  shall  be
- included in all copies or substantial portions of the Software.
- 
- THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
- EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
- MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file