diff --git a/.github/scripts/build-linux.sh b/.github/scripts/build-linux.sh
index c67caa9..c973cc7 100755
--- a/.github/scripts/build-linux.sh
+++ b/.github/scripts/build-linux.sh
@@ -55,14 +55,15 @@ popd
 
 # Install libjasper:
 # - libraw RedCine codec support
-curl -L --retry 3 -o jasper.tar.gz https://github.com/jasper-software/jasper/archive/version-2.0.32.tar.gz
-$CHECK_SHA256 jasper.tar.gz a3583a06698a6d6106f2fc413aa42d65d86bedf9a988d60e5cfa38bf72bc64b9
+curl -L --retry 3 -o jasper.tar.gz https://github.com/jasper-software/jasper/archive/version-4.2.5.tar.gz
+$CHECK_SHA256 jasper.tar.gz 3f4b1df7cab7a3cc67b9f6e28c730372f030b54b0faa8548a9ee04ae83fffd44
 tar xzf jasper.tar.gz
-pushd jasper-version-2.0.32
+pushd jasper-version-4.2.5
 mkdir cmake_build
 cd cmake_build
 cmake -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release \
-      -DJAS_ENABLE_OPENGL=OFF -DJAS_ENABLE_DOC=OFF -DJAS_ENABLE_PROGRAMS=OFF ..
+      -DJAS_ENABLE_OPENGL=OFF -DJAS_ENABLE_DOC=OFF -DJAS_ENABLE_PROGRAMS=OFF \
+      -DALLOW_IN_SOURCE_BUILD=ON ..
 make install -j$(nproc)
 popd
 
diff --git a/.github/scripts/build-macos.sh b/.github/scripts/build-macos.sh
index 63957bc..5aaee02 100755
--- a/.github/scripts/build-macos.sh
+++ b/.github/scripts/build-macos.sh
@@ -61,15 +61,16 @@ popd
 
 # Install libjasper:
 # - libraw RedCine codec support
-curl -L --retry 3 -o jasper.tar.gz https://github.com/jasper-software/jasper/archive/version-2.0.32.tar.gz
-$CHECK_SHA256 jasper.tar.gz a3583a06698a6d6106f2fc413aa42d65d86bedf9a988d60e5cfa38bf72bc64b9
+curl -L --retry 3 -o jasper.tar.gz https://github.com/jasper-software/jasper/archive/version-4.2.5.tar.gz
+$CHECK_SHA256 jasper.tar.gz 3f4b1df7cab7a3cc67b9f6e28c730372f030b54b0faa8548a9ee04ae83fffd44
 tar xzf jasper.tar.gz
-pushd jasper-version-2.0.32
+pushd jasper-version-4.2.5
 mkdir cmake_build
 cd cmake_build
 cmake -DCMAKE_INSTALL_PREFIX=$LIB_INSTALL_PREFIX -DCMAKE_BUILD_TYPE=Release \
       -DJAS_ENABLE_OPENGL=OFF -DJAS_ENABLE_DOC=OFF -DJAS_ENABLE_PROGRAMS=OFF \
-      -DCMAKE_INSTALL_NAME_DIR=$LIB_INSTALL_PREFIX/lib ..
+      -DCMAKE_INSTALL_NAME_DIR=$LIB_INSTALL_PREFIX/lib \
+      -DALLOW_IN_SOURCE_BUILD=ON ..
 make install -j
 popd