diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 09a0f39..2c32f01 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -30,7 +30,7 @@ jobs:
         shell: bash
         run: |
           python -m pip install wheel
-          python -m pip install --upgrade pip conan
+          python -m pip install --upgrade pip "conan<2"
           cmake -E make_directory ${{runner.workspace}}/build
 
       - name: Configure CMake
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index f782dbb..7bf4d29 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -22,7 +22,7 @@ jobs:
       - name: Install build packages and pytest
         run: |
           python -m pip install --upgrade pip wheel setuptools
-          python -m pip install conan scikit-build pytest cython numpy
+          python -m pip install "conan<2" scikit-build pytest cython numpy
 
       - name: Create sdist
         run: python setup.py sdist
@@ -58,7 +58,7 @@ jobs:
       - name: Setup environment
         run: |
           python -m pip install --upgrade pip wheel
-          python -m pip install conan pytest ducc0
+          python -m pip install "conan<2" pytest ducc0
           conan profile new default --detect
 
       - name: Build wheels
@@ -91,14 +91,14 @@ jobs:
           mv source-distribution/*.tar.gz  wheel-*/*.whl dist
 
       - name: Publish distribution 📦 to Test PyPI
-        if: ${{ github.ref != 'refs/tags/v1.5.1' }}
+        if: ${{ github.ref != 'refs/tags/v1.5.2' }}
         uses: pypa/gh-action-pypi-publish@master
         with:
           password: ${{ secrets.TEST_PYPI_TOKEN }}
           repository_url: https://test.pypi.org/legacy/
 
       - name: Publish distribution 📦 to PyPI
-        if: ${{ github.ref == 'refs/tags/v1.5.1' }}
+        if: ${{ github.ref == 'refs/tags/v1.5.2' }}
         uses: pypa/gh-action-pypi-publish@master
         with:
           password: ${{ secrets.PYPI_TOKEN }}
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7d272d7..f3b92f0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.12)
 
 project(
     Ssht
-    VERSION "1.5.1"
+    VERSION "1.5.2"
     DESCRIPTION "Fast and exact spin spherical harmonic transforms"
     HOMEPAGE_URL "http://astro-informatics.github.io/ssht/"
     LANGUAGES C)
diff --git a/makefile b/makefile
index cb3bc3c..6e59774 100644
--- a/makefile
+++ b/makefile
@@ -1,7 +1,7 @@
 # ======== COMPILER ========
 
 CC      = gcc
-OPT		= -std=c99 -pedantic -Wall -O3 -fopenmp -DSSHT_VERSION=\"1.5.1\" -DSSHT_BUILD=\"`git rev-parse HEAD`\"
+OPT		= -std=c99 -pedantic -Wall -O3 -fopenmp -DSSHT_VERSION=\"1.5.2\" -DSSHT_BUILD=\"`git rev-parse HEAD`\"
 #OPT	= -Wall -g -fopenmp -DSSHT_VERSION=\"1.0b1\" -DSSHT_BUILD=\"`git rev-parse HEAD`\"
 
 
diff --git a/pyproject.toml b/pyproject.toml
index d474434..2b5e23d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [build-system]
 requires = [
     "setuptools", "wheel", "scikit-build", "cmake>=3.12", "ninja", "cython",
-    "oldest-supported-numpy", "conan"
+    "oldest-supported-numpy", "conan<2"
 ]
 
 [tool.isort]
diff --git a/setup.cfg b/setup.cfg
index 24c528d..a1b09a7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.5.1
+current_version = 1.5.2
 commit = False
 tag = False
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(rc(?P<rc>\d+))?
diff --git a/setup.py b/setup.py
index 2f22a29..21a4053 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@
 
 setup(
     name="pyssht",
-    version="1.5.1",
+    version="1.5.2",
     author=[
         "J. D. McEwen",
         "C. R. G. Wallis",