diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index e7a72d1af..c515414c2 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -14,7 +14,7 @@ jobs:
     name: Synthesis benchmarks
     runs-on: ubuntu-latest
     timeout-minutes: 40
-    container: ghcr.io/kuznia-rdzeni/amaranth-synth:ecp5
+    container: ghcr.io/kuznia-rdzeni/amaranth-synth:ecp5-3.11
     steps:
       - uses: actions/checkout@v3
 
@@ -23,19 +23,29 @@ jobs:
           # https://github.com/actions/runner/issues/2033
           chown -R $(id -u):$(id -g) $PWD
 
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.11'
+
       - name: Install dependencies
         run: |
+          python3 -m venv venv
+          . venv/bin/activate
           python3 -m pip install --upgrade pip
-          pip3 install -r requirements-dev.txt
+          python3 -m pip install -r requirements-dev.txt
 
       - name: Synthesize
-        run: PYTHONHASHSEED=0 ./scripts/synthesize.py --verbose --config ${{ matrix.config }}
+        run: |
+          . venv/bin/activate
+          PYTHONHASHSEED=0 ./scripts/synthesize.py --verbose --config ${{ matrix.config }}
 
       - name: Print synthesis information
         run: cat ./build/top.tim
 
       - name: Collect Benchmark information
         run: |
+          . venv/bin/activate
           ./scripts/parse_benchmark_info.py
           cat ./benchmark.json
 
@@ -53,7 +63,7 @@ jobs:
   build-perf-benchmarks:
     name: Build performance benchmarks
     runs-on: ubuntu-latest
-    container: ghcr.io/kuznia-rdzeni/riscv-toolchain:2023.05.14
+    container: ghcr.io/kuznia-rdzeni/riscv-toolchain:2023.10.08_v
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -73,7 +83,7 @@ jobs:
     name: Run performance benchmarks
     runs-on: ubuntu-latest
     timeout-minutes: 60
-    container: ghcr.io/kuznia-rdzeni/verilator:v5.008
+    container: ghcr.io/kuznia-rdzeni/verilator:v5.008-3.11
     needs: build-perf-benchmarks
     steps:
       - name: Checkout
@@ -84,13 +94,22 @@ jobs:
           # https://github.com/actions/runner/issues/2033
           chown -R $(id -u):$(id -g) $PWD
 
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.11'
+
       - name: Install dependencies
         run: |
+          python3 -m venv venv
+          . venv/bin/activate
           python3 -m pip install --upgrade pip
-          pip3 install -r requirements-dev.txt
+          python3 -m pip install -r requirements-dev.txt
 
       - name: Generate Verilog
-        run: PYTHONHASHSEED=0 ./scripts/gen_verilog.py --verbose --config full
+        run: |
+          . venv/bin/activate
+          PYTHONHASHSEED=0 ./scripts/gen_verilog.py --verbose --config full
 
       - uses: actions/download-artifact@v3
         with:
@@ -99,6 +118,7 @@ jobs:
 
       - name: Run benchmarks
         run: |
+          . venv/bin/activate
           scripts/run_benchmarks.py
 
       - name: Store benchmark result (IPC)
diff --git a/.github/workflows/deploy_gh_pages.yml b/.github/workflows/deploy_gh_pages.yml
index 210752f06..89fdeea7d 100644
--- a/.github/workflows/deploy_gh_pages.yml
+++ b/.github/workflows/deploy_gh_pages.yml
@@ -26,21 +26,23 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.10"
-          cache: "pip"
-          cache-dependency-path: |
-            requirements.txt
-            requirements-dev.txt
+          python-version: "3.11"
 
       - name: Install dependencies
         run: |
+          python3 -m venv venv
+          . venv/bin/activate
           python -m pip install --upgrade pip
-          pip3 install -r requirements-dev.txt
+          python -m pip install -r requirements-dev.txt
 
       - name: Build documentation
-        run: ./ci/build_docs.sh
+        run: |
+          . venv/bin/activate
+          ./ci/build_docs.sh
 
       - name: Push documentation
         # Deploy documentation only when on master
         if: github.ref == 'refs/heads/master'
-        run: ./ci/push_gh_pages.sh
+        run: |
+          . venv/bin/activate
+          ./ci/push_gh_pages.sh
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4d70ae121..957e2b1c5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,7 +15,7 @@ jobs:
   build-regression-tests:
     name: Build regression tests
     runs-on: ubuntu-latest
-    container: ghcr.io/kuznia-rdzeni/riscv-toolchain:2023.05.14
+    container: ghcr.io/kuznia-rdzeni/riscv-toolchain:2023.10.08_v
     steps:
       - name: Checkout
         uses: actions/checkout@v3
@@ -35,19 +35,28 @@ jobs:
     name: Run regression tests
     runs-on: ubuntu-latest
     timeout-minutes: 10
-    container: ghcr.io/kuznia-rdzeni/verilator:v5.008
+    container: ghcr.io/kuznia-rdzeni/verilator:v5.008-3.11
     needs: build-regression-tests
     steps:
       - name: Checkout
         uses: actions/checkout@v3
 
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.11'
+
       - name: Install dependencies
         run: |
+          python3 -m venv venv
+          . venv/bin/activate
           python3 -m pip install --upgrade pip
-          pip3 install -r requirements-dev.txt
+          python3 -m pip install -r requirements-dev.txt
 
       - name: Generate Verilog
-        run: PYTHONHASHSEED=0 ./scripts/gen_verilog.py --verbose --config full
+        run: |
+          . venv/bin/activate
+          PYTHONHASHSEED=0 ./scripts/gen_verilog.py --verbose --config full
 
       - uses: actions/download-artifact@v3
         with:
@@ -56,6 +65,7 @@ jobs:
 
       - name: Run tests
         run: |
+          . venv/bin/activate
           scripts/run_tests.py -a regression
 
       - name: Test Report
@@ -76,7 +86,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
+          python-version: '3.11'
           cache: 'pip'
           cache-dependency-path: |
             requirements.txt
@@ -105,7 +115,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: '3.10'
+          python-version: '3.11'
           cache: 'pip'
           cache-dependency-path: |
             requirements.txt
diff --git a/docker/AmaranthSynthECP5.Dockerfile b/docker/AmaranthSynthECP5.Dockerfile
index 0e9809b8c..3b9326ccf 100644
--- a/docker/AmaranthSynthECP5.Dockerfile
+++ b/docker/AmaranthSynthECP5.Dockerfile
@@ -1,9 +1,9 @@
-FROM ubuntu:22.10
+FROM ubuntu:23.04
 
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive \
     apt-get install -y --no-install-recommends \
-    python3.10 python3-pip git yosys \
+    python3.11 python3-pip git yosys lsb-release \
     build-essential cmake python3-dev libboost-all-dev libeigen3-dev && \
     rm -rf /var/lib/apt/lists/*
 
diff --git a/docker/Verilator.Dockerfile b/docker/Verilator.Dockerfile
index ddb5925f7..64c60c5e4 100644
--- a/docker/Verilator.Dockerfile
+++ b/docker/Verilator.Dockerfile
@@ -1,9 +1,9 @@
-FROM ubuntu:22.10
+FROM ubuntu:23.04
 
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive \
     apt-get install -y --no-install-recommends \
-    python3.10 libpython3.10 python3-pip git \
+    python3.11 libpython3.11 python3-pip git lsb-release \
     perl perl-doc help2man make autoconf g++ flex bison ccache numactl \
     libgoogle-perftools-dev libfl-dev zlib1g-dev && \
     rm -rf /var/lib/apt/lists/*
diff --git a/docker/riscv-toolchain.Dockerfile b/docker/riscv-toolchain.Dockerfile
index ec33ce01b..d35c604b9 100644
--- a/docker/riscv-toolchain.Dockerfile
+++ b/docker/riscv-toolchain.Dockerfile
@@ -1,9 +1,9 @@
-FROM ubuntu:22.10
+FROM ubuntu:23.04
 
 RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive \
     apt-get install -y --no-install-recommends \
-    autoconf automake autotools-dev curl python3 bc \
+    autoconf automake autotools-dev curl python3 bc lsb-release \
     libmpc-dev libmpfr-dev libgmp-dev gawk build-essential \
     bison flex texinfo gperf libtool patchutils zlib1g-dev \
     libexpat-dev ninja-build git ca-certificates python-is-python3 && \
diff --git a/docs/Development_environment.md b/docs/Development_environment.md
index 8f471cefa..cfdb58cad 100644
--- a/docs/Development_environment.md
+++ b/docs/Development_environment.md
@@ -4,7 +4,7 @@
 
 In order to prepare the development environment, please follow the steps below:
 
-1. Install the Python 3.10 interpreter and pip package manager.
+1. Install the Python 3.11 interpreter and pip package manager.
     * Optionally create a Python virtual environment with `python3 -m venv venv` in the project directory and activate it using generated script: `. venv/bin/activate`.
 2. Install all required libraries with `pip3 install -r requirements-dev.txt`.
 3. Install `riscv64-unknown-elf` binutils using your favourite package manager. On Debian-based distros the package is called `binutils-riscv64-unknown-elf`, on Arch-based - `riscv64-unknown-elf-binutils`.