diff --git a/Changelog.md b/Changelog.md
index 6205e72b1..48257696d 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -23,6 +23,10 @@ AST Changes:
  * AST: add the ``internalFunctionID`` field to the AST nodes of functions that may be called via the internal dispatch. These IDs are always generated, but they are only used in via-IR code generation.
 
 
+Build System:
+ * Update internal dependency of jsoncpp to 1.9.5.
+
+
 ### 0.8.19 (2023-02-22)
 
 Language Features:
diff --git a/cmake/jsoncpp.cmake b/cmake/jsoncpp.cmake
index 29b8f5f05..6a42b8a3f 100644
--- a/cmake/jsoncpp.cmake
+++ b/cmake/jsoncpp.cmake
@@ -43,9 +43,9 @@ endif()
 ExternalProject_Add(jsoncpp-project
     PREFIX "${prefix}"
     DOWNLOAD_DIR "${CMAKE_SOURCE_DIR}/deps/downloads"
-    DOWNLOAD_NAME jsoncpp-1.9.3.tar.gz
-    URL https://github.com/open-source-parsers/jsoncpp/archive/1.9.3.tar.gz
-    URL_HASH SHA256=8593c1d69e703563d94d8c12244e2e18893eeb9a8a9f8aa3d09a327aa45c8f7d
+    DOWNLOAD_NAME jsoncpp-1.9.5.tar.gz
+    URL https://github.com/open-source-parsers/jsoncpp/archive/1.9.5.tar.gz
+    URL_HASH SHA256=f409856e5920c18d0c2fb85276e24ee607d2a09b5e7d5f0a371368903c275da2
     CMAKE_COMMAND ${JSONCPP_CMAKE_COMMAND}
     CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
                -DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
diff --git a/libsolutil/JSON.cpp b/libsolutil/JSON.cpp
index d27982acb..1eb494eba 100644
--- a/libsolutil/JSON.cpp
+++ b/libsolutil/JSON.cpp
@@ -33,8 +33,8 @@
 using namespace std;
 
 static_assert(
-	(JSONCPP_VERSION_MAJOR == 1) && (JSONCPP_VERSION_MINOR == 9) && (JSONCPP_VERSION_PATCH == 3),
-	"Unexpected jsoncpp version: " JSONCPP_VERSION_STRING ". Expecting 1.9.3."
+	(JSONCPP_VERSION_MAJOR == 1) && (JSONCPP_VERSION_MINOR == 9) && (JSONCPP_VERSION_PATCH == 5),
+	"Unexpected jsoncpp version: " JSONCPP_VERSION_STRING ". Expecting 1.9.5."
 );
 
 namespace solidity::util
diff --git a/scripts/create_source_tarball.sh b/scripts/create_source_tarball.sh
index 1ea8c0b57..aab48199e 100755
--- a/scripts/create_source_tarball.sh
+++ b/scripts/create_source_tarball.sh
@@ -31,9 +31,9 @@ REPO_ROOT="$(dirname "$0")"/..
     fi
     # Add dependencies
     mkdir -p "$SOLDIR/deps/downloads/" 2>/dev/null || true
-    jsoncpp_version="1.9.3"
+    jsoncpp_version="1.9.5"
     jsoncpp_package_path="$SOLDIR/deps/downloads/jsoncpp-${jsoncpp_version}.tar.gz"
-    jsoncpp_sha256=8593c1d69e703563d94d8c12244e2e18893eeb9a8a9f8aa3d09a327aa45c8f7d
+    jsoncpp_sha256=f409856e5920c18d0c2fb85276e24ee607d2a09b5e7d5f0a371368903c275da2
     wget -O "$jsoncpp_package_path" "https://github.com/open-source-parsers/jsoncpp/archive/${jsoncpp_version}.tar.gz"
     if ! [ "$(sha256sum "$jsoncpp_package_path")" = "${jsoncpp_sha256}  ${jsoncpp_package_path}" ]
     then
diff --git a/scripts/release_ppa.sh b/scripts/release_ppa.sh
index aff2e7c25..792bdbc22 100755
--- a/scripts/release_ppa.sh
+++ b/scripts/release_ppa.sh
@@ -125,7 +125,7 @@ mv solidity solc
 
 # Fetch dependencies
 mkdir -p ./solc/deps/downloads/ 2>/dev/null || true
-wget -O ./solc/deps/downloads/jsoncpp-1.9.3.tar.gz https://github.com/open-source-parsers/jsoncpp/archive/1.9.3.tar.gz
+wget -O ./solc/deps/downloads/jsoncpp-1.9.5.tar.gz https://github.com/open-source-parsers/jsoncpp/archive/1.9.5.tar.gz
 wget -O ./solc/deps/downloads/range-v3-0.12.0.tar.gz https://github.com/ericniebler/range-v3/archive/0.12.0.tar.gz
 wget -O ./solc/deps/downloads/fmt-8.0.1.tar.gz https://github.com/fmtlib/fmt/archive/8.0.1.tar.gz