diff --git a/m4/ax_matlab_version.m4 b/m4/ax_matlab_version.m4
index 834589f0f5617e11a0e361b14f15b5dd02306cb8..5cd35cb9845a3adf11d74655eda40d31974dbe15 100644
--- a/m4/ax_matlab_version.m4
+++ b/m4/ax_matlab_version.m4
@@ -44,6 +44,9 @@ fi
 if test -n "$MATLAB_VERSION"; then
   dnl Convert a release number (Rnnnnx) into a version number (x.y)
   case $MATLAB_VERSION in
+    *2021b | *2021B)
+      MATLAB_VERSION="9.11"
+      ;;
     *2021a | *2021A)
       MATLAB_VERSION="9.10"
       ;;
diff --git a/macOS/build.sh b/macOS/build.sh
index 2c0f7b78519a39e818961a6cefae564529d99bc3..518dc9aec9611df2d68114848166a56ecf85d463 100755
--- a/macOS/build.sh
+++ b/macOS/build.sh
@@ -112,7 +112,7 @@ PKGFILES="$ROOTDIR"/macOS/pkg/"$NAME"
 mkdir -p \
       "$PKGFILES"/preprocessor \
       "$PKGFILES"/mex/matlab/maci64-8.3-9.3 \
-      "$PKGFILES"/mex/matlab/maci64-9.4-9.10 \
+      "$PKGFILES"/mex/matlab/maci64-9.4-9.11 \
       "$PKGFILES"/doc/dynare++ \
       "$PKGFILES"/dynare++ \
       "$PKGFILES"/scripts \
@@ -176,7 +176,7 @@ make clean
   --with-slicot="$LIB64"/Slicot/with-underscore \
   --with-matlab=/Applications/MATLAB_R2019b.app
 make -j"$NTHREADS"
-cp -L  "$ROOTDIR"/mex/matlab/*                                       "$PKGFILES"/mex/matlab/maci64-9.4-9.10
+cp -L  "$ROOTDIR"/mex/matlab/*                                       "$PKGFILES"/mex/matlab/maci64-9.4-9.11
 
 
 ##
diff --git a/matlab/add_path_to_mex_files.m b/matlab/add_path_to_mex_files.m
index c16e1a840d839d24481819549a63b768cc0237a3..73a24673d65fb4c0b5fbe2453a6cbcb0ae0489c0 100644
--- a/matlab/add_path_to_mex_files.m
+++ b/matlab/add_path_to_mex_files.m
@@ -60,7 +60,7 @@ else
                 end
             end
         else
-            tmp = [dynareroot '../mex/matlab/win64-9.4-9.10/'];
+            tmp = [dynareroot '../mex/matlab/win64-9.4-9.11/'];
             if exist(tmp, 'dir')
                 mexpath = tmp;
                 if modifypath
@@ -80,7 +80,7 @@ else
                 end
             end
         else
-            tmp = [dynareroot '../mex/matlab/maci64-9.4-9.10'];
+            tmp = [dynareroot '../mex/matlab/maci64-9.4-9.11'];
             if exist(tmp, 'dir')
                 mexpath = tmp;
                 if modifypath
diff --git a/windows/build.sh b/windows/build.sh
index 07a7af5a0a063a2127bc7546e0549b3a3c984ae0..959f8aef6066c0ea70db271733c798f9e2c4a81b 100755
--- a/windows/build.sh
+++ b/windows/build.sh
@@ -121,8 +121,8 @@ build_windows_matlab_mex_64_b ()
 		     PACKAGE_STRING="dynare $VERSION"
     make -j"$NTHREADS" all
     x86_64-w64-mingw32-strip -- **/*.mexw64
-    mkdir -p "$ROOT_DIRECTORY"/../mex/matlab/win64-9.4-9.10
-    mv -- **/*.mexw64 "$ROOT_DIRECTORY"/../mex/matlab/win64-9.4-9.10
+    mkdir -p "$ROOT_DIRECTORY"/../mex/matlab/win64-9.4-9.11
+    mv -- **/*.mexw64 "$ROOT_DIRECTORY"/../mex/matlab/win64-9.4-9.11
 }
 
 # Create Windows DLL binaries for Octave/MinGW (64bit)
diff --git a/windows/dynare.nsi b/windows/dynare.nsi
index 5e15a9fc4b9590ef2ba14eb134cbecf4b024d96c..c85a3064abf1e811a7e9f326ded62bf111115447 100644
--- a/windows/dynare.nsi
+++ b/windows/dynare.nsi
@@ -90,9 +90,9 @@ Section "MEX files for MATLAB 64-bit, version 8.3 to 9.3 (R2014a to R2017b)"
  File ..\mex\matlab\win64-8.3-9.3\*.mexw64
 SectionEnd
 
-Section "MEX files for MATLAB 64-bit, version 9.4 to 9.10 (R2018a to R2021a)"
- SetOutPath $INSTDIR\mex\matlab\win64-9.4-9.10
- File ..\mex\matlab\win64-9.4-9.10\*.mexw64
+Section "MEX files for MATLAB 64-bit, version 9.4 to 9.10 (R2018a to R2021b)"
+ SetOutPath $INSTDIR\mex\matlab\win64-9.4-9.11
+ File ..\mex\matlab\win64-9.4-9.11\*.mexw64
 SectionEnd
 
 Section "MinGW compiler for MATLAB 64-bit"